diff --git a/.github/script.sh b/.github/script.sh
index a14b641..27bc7f1 100755
--- a/.github/script.sh
+++ b/.github/script.sh
@@ -32,9 +32,10 @@ cd ~/fixture || exit 1
 # Test that all standards were installed.
 INSTALLED=$(./vendor/bin/phpcs -i)
 EXPECTED=(
+  AcquiaDrupalMinimal
   AcquiaDrupalStrict
-  AcquiaDrupalTransitional
-  AcquiaPHP
+  AcquiaPHPMinimal
+  AcquiaPHPStrict
   Drupal
   DrupalPractice
   PHPCompatibility
@@ -54,13 +55,14 @@ if [[ "$FAILURES" ]]; then
 fi
 
 # Place a good test file.
-printf "<?php\n\n/**\n * @file\n * Good test file.\n */\n" > good.php
+printf "<?php\n\n/**\n * @file\n * Good test file.\n */\n\ndeclare(strict_types=1);\n" > good.php
 
 # Test that the SUT's standards can be run.
 EXPECTED=(
+  AcquiaDrupalMinimal
   AcquiaDrupalStrict
-  AcquiaDrupalTransitional
-  AcquiaPHP
+  AcquiaPHPMinimal
+  AcquiaPHPStrict
 )
 for STANDARD in "${EXPECTED[@]}"; do
   ./vendor/bin/phpcs -v --standard="$STANDARD" good.php
diff --git a/README.md b/README.md
index d59b7ff..197ed62 100644
--- a/README.md
+++ b/README.md
@@ -19,12 +19,17 @@ Acquia Coding Standards for PHP includes a selection of sniffs from the followin
 
 ## Rulesets
 
-Rules are split into rulesets according to the project language and framework:
+Rules are split into rulesets according to the project *framework* and *audience*:
 
-* [AcquiaPHP](src/Standards/AcquiaPHP/ruleset.xml) contains sniffs applicable to all PHP projects.
-* [AcquiaDrupalStrict](src/Standards/AcquiaDrupalStrict/ruleset.xml) incorporates AcquiaPHP and adds all Drupal coding standards and best practices sniffs. Recommended for new Drupal projects and teams familiar with Drupal coding standards.
-* [AcquiaDrupalTransitional](src/Standards/AcquiaDrupalTransitional/ruleset.xml) incorporates AcquiaPHP and adds Drupal core's own phpcs configuration, which is less strict than the official standards. Recommended for legacy Drupal codebases or teams new to Drupal coding standards.
-* [AcquiaEdge](src/Standards/AcquiaEdge/ruleset.xml) incorporates AcquiaPHP and adds backwards-incompatible sniffs that will be included in AcquiaPHP with the next major release of this package.
+* Projects targeting the Drupal community, e.g., Drupal modules, should adopt a *Drupal* ruleset. All others should adopt a (more generalized) *PHP* ruleset.
+* Public projects, e.g., open-source Drupal modules, should adopt a *non-strict* ruleset to facilitate external collaboration. All others should adopt a more opinionated *internal* ruleset.
+
+There are four permutations of these guidelines, leading to four rulesets to choose from:
+
+* [AcquiaDrupalMinimal](src/Standards/AcquiaDrupalMinimal/ruleset.xml) is based on the Drupal coding standard and is intended for use on all public Drupal projects.
+* [AcquiaDrupalStrict](src/Standards/AcquiaDrupalStrict/ruleset.xml) is based on AcquiaDrupal and adds the more opinionated DrupalPractice standard. It is intended for use on all internal Drupal projects.
+* [AcquiaPHPMinimal](src/Standards/AcquiaPHPMinimal/ruleset.xml) is based on PSR-12 and is intended for use on all public non-Drupal projects.
+* [AcquiaPHPStrict](src/Standards/AcquiaPHPStrict/ruleset.xml) is based on AcquiaPHP and adds additional, more opinionated standards. It is intended for use on all internal, non-Drupal projects.
 
 ## Installation & usage
 
diff --git a/composer.json b/composer.json
index fe40fab..a731391 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-develop": "2.x-dev"
+            "dev-develop": "3.x-dev"
         }
     },
     "autoload": {
diff --git a/composer.lock b/composer.lock
index be055c2..3358b4f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "85e531ea146b4097f8d2564b24854784",
+    "content-hash": "377928302778414a51f9799bfcc24742",
     "packages": [
         {
             "name": "dealerdirect/phpcodesniffer-composer-installer",
@@ -370,12 +370,12 @@
             "version": "3.7.2",
             "source": {
                 "type": "git",
-                "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
+                "url": "https://github.com/PHPCSStandards/PHP_CodeSniffer.git",
                 "reference": "ed8e00df0a83aa96acf703f8c2979ff33341f879"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/ed8e00df0a83aa96acf703f8c2979ff33341f879",
+                "url": "https://api.github.com/repos/PHPCSStandards/PHP_CodeSniffer/zipball/ed8e00df0a83aa96acf703f8c2979ff33341f879",
                 "reference": "ed8e00df0a83aa96acf703f8c2979ff33341f879",
                 "shasum": ""
             },
@@ -587,5 +587,5 @@
     "prefer-lowest": false,
     "platform": [],
     "platform-dev": [],
-    "plugin-api-version": "2.3.0"
+    "plugin-api-version": "2.6.0"
 }
diff --git a/example/phpcs.xml.dist b/example/phpcs.xml.dist
index 216045c..d5f6565 100644
--- a/example/phpcs.xml.dist
+++ b/example/phpcs.xml.dist
@@ -7,10 +7,10 @@
 
   <!-- Uncomment your chosen standard and the filename extensions corresponding to it. -->
   <!-- @see https://github.com/acquia/coding-standards-php/issues/18 for background on filename extensions. -->
+  <!-- <rule ref="AcquiaDrupalMinimal"/><arg name="extensions" value="php,module,inc,install,test,profile,theme,css,info,txt,md,yml"/> -->
   <rule ref="AcquiaDrupalStrict"/><arg name="extensions" value="php,module,inc,install,test,profile,theme,css,info,txt,md,yml"/>
-  <!-- <rule ref="AcquiaDrupalTransitional"/><arg name="extensions" value="php,module,inc,install,test,profile,theme,css,info,txt,md,yml"/> -->
-  <!-- <rule ref="AcquiaPHP"/><arg name="extensions" value="php,inc,test,css,txt,md,yml"/> -->
-  <!-- <rule ref="AcquiaEdge"/><arg name="extensions" value="php,inc,test,css,txt,md,yml"/> -->
+  <!-- <rule ref="AcquiaPHPMinimal"/><arg name="extensions" value="php,inc,test,css,txt,md,yml"/> -->
+  <!-- <rule ref="AcquiaPHPStrict"/><arg name="extensions" value="php,inc,test,css,txt,md,yml"/> -->
 
   <arg name="colors"/>
   <arg name="cache" value=".phpcs-cache"/>
diff --git a/src/Standards/AcquiaDrupalMinimal/ruleset.xml b/src/Standards/AcquiaDrupalMinimal/ruleset.xml
new file mode 100644
index 0000000..1237efc
--- /dev/null
+++ b/src/Standards/AcquiaDrupalMinimal/ruleset.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!-- https://github.com/squizlabs/PHP_CodeSniffer/wiki/Annotated-Ruleset -->
+<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="../../../vendor/squizlabs/php_codesniffer/phpcs.xsd"
+         name="AcquiaDrupalMinimal"
+>
+
+  <description>Acquia's Drupal coding standards.</description>
+
+  <!-- Drupal sniffs -->
+  <rule ref="Drupal">
+    <exclude name="Drupal.Files.TxtFileLineLength.TooLong"/>
+  </rule>
+
+  <!-- PHP Compatibility sniffs -->
+  <!-- The lowest version of PHP supported by both Drupal and Acquia Cloud.
+    @see https://www.drupal.org/docs/8/system-requirements/php-requirements
+    @see https://docs.acquia.com/acquia-cloud/arch/tech-platform/
+    For instructions on overriding this value in your project,
+    @see https://github.com/acquia/coding-standards-php/pull/37 -->
+  <config name="testVersion" value="7.4-"/>
+  <rule ref="PHPCompatibility">
+    <exclude name="PHPCompatibility.Extensions.RemovedExtensions.famRemoved"/>
+  </rule>
+
+  <!-- Relax rules for automated tests -->
+  <rule ref="Drupal.Arrays.Array.LongLineDeclaration">
+    <exclude-pattern>tests/*</exclude-pattern>
+  </rule>
+  <rule ref="Drupal.Commenting.ClassComment.Missing">
+    <exclude-pattern>tests/*</exclude-pattern>
+  </rule>
+  <rule ref="Drupal.Commenting.DocComment.MissingShort">
+    <exclude-pattern>tests/*</exclude-pattern>
+  </rule>
+  <rule ref="Drupal.Commenting.FunctionComment.Missing">
+    <exclude-pattern>tests/*</exclude-pattern>
+  </rule>
+  <rule ref="Drupal.Commenting.VariableComment.Missing">
+    <exclude-pattern>tests/*</exclude-pattern>
+  </rule>
+
+</ruleset>
diff --git a/src/Standards/AcquiaDrupalStrict/ruleset.xml b/src/Standards/AcquiaDrupalStrict/ruleset.xml
index 4fac5fe..5957fcf 100644
--- a/src/Standards/AcquiaDrupalStrict/ruleset.xml
+++ b/src/Standards/AcquiaDrupalStrict/ruleset.xml
@@ -9,45 +9,9 @@
   <description>Acquia's strict Drupal coding standards.</description>
 
   <!-- Drupal sniffs -->
-  <rule ref="Drupal">
-    <exclude name="Drupal.Files.TxtFileLineLength.TooLong"/>
-  </rule>
-  <!-- Relax rules for automated tests -->
-  <rule ref="Drupal.Arrays.Array.LongLineDeclaration">
-    <exclude-pattern>tests/*</exclude-pattern>
-  </rule>
-  <rule ref="Drupal.Commenting.ClassComment.Missing">
-    <exclude-pattern>tests/*</exclude-pattern>
-  </rule>
-  <rule ref="Drupal.Commenting.DocComment.MissingShort">
-    <exclude-pattern>tests/*</exclude-pattern>
-  </rule>
-  <rule ref="Drupal.Commenting.FunctionComment.Missing">
-    <exclude-pattern>tests/*</exclude-pattern>
-  </rule>
-  <rule ref="Drupal.Commenting.VariableComment.Missing">
-    <exclude-pattern>tests/*</exclude-pattern>
-  </rule>
+  <rule ref="AcquiaDrupalMinimal"/>
 
   <!-- Drupal Practice sniffs -->
   <rule ref="DrupalPractice"/>
 
-  <!-- Acquia PHP sniffs -->
-  <rule ref="AcquiaPHP"/>
-
-  <!-- Drupal should type hint hooks -->
-  <!-- @see https://www.drupal.org/project/drupal/issues/3229216 -->
-  <rule ref="SlevomatCodingStandard.TypeHints.ReturnTypeHint.MissingTraversableTypeHintSpecification">
-    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
-  </rule>
-  <rule ref="SlevomatCodingStandard.TypeHints.ReturnTypeHint.MissingAnyTypeHint">
-    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
-  </rule>
-  <rule ref="SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingAnyTypeHint">
-    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
-  </rule>
-  <rule ref="SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingTraversableTypeHintSpecification">
-    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
-  </rule>
-
 </ruleset>
diff --git a/src/Standards/AcquiaDrupalTransitional/ruleset.xml b/src/Standards/AcquiaDrupalTransitional/ruleset.xml
deleted file mode 100644
index 0159dc0..0000000
--- a/src/Standards/AcquiaDrupalTransitional/ruleset.xml
+++ /dev/null
@@ -1,53 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-
-<!-- https://github.com/squizlabs/PHP_CodeSniffer/wiki/Annotated-Ruleset -->
-<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="../../../vendor/squizlabs/php_codesniffer/phpcs.xsd"
-         name="AcquiaDrupalTransitional"
->
-
-  <description>Acquia's transitional Drupal coding standards.</description>
-
-  <!-- Drupal sniffs -->
-  <rule ref="Drupal">
-    <exclude name="Drupal.Files.TxtFileLineLength.TooLong"/>
-  </rule>
-  <!-- Relax rules for automated tests -->
-  <rule ref="Drupal.Arrays.Array.LongLineDeclaration">
-    <exclude-pattern>tests/*</exclude-pattern>
-  </rule>
-  <rule ref="Drupal.Commenting.ClassComment.Missing">
-    <exclude-pattern>tests/*</exclude-pattern>
-  </rule>
-  <rule ref="Drupal.Commenting.DocComment.MissingShort">
-    <exclude-pattern>tests/*</exclude-pattern>
-  </rule>
-  <rule ref="Drupal.Commenting.FunctionComment.Missing">
-    <exclude-pattern>tests/*</exclude-pattern>
-  </rule>
-  <rule ref="Drupal.Commenting.VariableComment.Missing">
-    <exclude-pattern>tests/*</exclude-pattern>
-  </rule>
-
-  <!-- Drupal Practice sniffs -->
-  <rule ref="DrupalPractice.Commenting.ExpectedException"/>
-
-  <!-- Acquia PHP sniffs -->
-  <rule ref="AcquiaPHP"/>
-
-  <!-- Drupal should type hint hooks -->
-  <!-- @see https://www.drupal.org/project/drupal/issues/3229216 -->
-  <rule ref="SlevomatCodingStandard.TypeHints.ReturnTypeHint.MissingTraversableTypeHintSpecification">
-    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
-  </rule>
-  <rule ref="SlevomatCodingStandard.TypeHints.ReturnTypeHint.MissingAnyTypeHint">
-    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
-  </rule>
-  <rule ref="SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingAnyTypeHint">
-    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
-  </rule>
-  <rule ref="SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingTraversableTypeHintSpecification">
-    <exclude-pattern>*/modules/custom/*/*\.(module|install)$</exclude-pattern>
-  </rule>
-
-</ruleset>
diff --git a/src/Standards/AcquiaEdge/ruleset.xml b/src/Standards/AcquiaEdge/ruleset.xml
deleted file mode 100644
index a848912..0000000
--- a/src/Standards/AcquiaEdge/ruleset.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-
-<!-- https://github.com/squizlabs/PHP_CodeSniffer/wiki/Annotated-Ruleset -->
-<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="../../../vendor/squizlabs/php_codesniffer/phpcs.xsd"
-         name="AcquiaEdge"
->
-
-  <description>Acquia's Edge (backwards-incompatible) coding standards.</description>
-
-  <!-- Acquia PHP sniffs -->
-  <rule ref="AcquiaPHP"/>
-
-  <!-- SlevomatCodingStandard sniffs -->
-  <rule ref="SlevomatCodingStandard.Commenting.DocCommentSpacing" />
-  <rule ref="SlevomatCodingStandard.Commenting.EmptyComment" />
-
-</ruleset>
diff --git a/src/Standards/AcquiaPHP/ruleset.xml b/src/Standards/AcquiaPHP/ruleset.xml
deleted file mode 100644
index 3041e70..0000000
--- a/src/Standards/AcquiaPHP/ruleset.xml
+++ /dev/null
@@ -1,232 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-
-<!-- https://github.com/squizlabs/PHP_CodeSniffer/wiki/Annotated-Ruleset -->
-<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="../../../vendor/squizlabs/php_codesniffer/phpcs.xsd"
-         name="AcquiaPHP"
->
-
-  <description>Acquia's PHP coding standards.</description>
-
-  <!-- Drupal sniffs -->
-  <!-- These provide PHPCBF integration, unlike their Squiz equivalents -->
-  <rule ref="Drupal.Classes.ClassDeclaration" />
-  <rule ref="Drupal.Classes.UnusedUseStatement"/>
-  <!-- https://www.php-fig.org/psr/psr-12/#5-control-structures -->
-  <rule ref="Drupal.ControlStructures.ControlSignature" />
-  <rule ref="Drupal.Functions.FunctionDeclaration" />
-  <rule ref="Drupal.Scope.MethodScope"/>
-  <rule ref="Drupal.WhiteSpace.ScopeIndent"/>
-
-  <!-- Generic sniffs -->
-  <rule ref="Generic.Arrays.DisallowLongArraySyntax"/>
-  <rule ref="Generic.Files.ByteOrderMark"/>
-  <rule ref="Generic.Files.EndFileNewline" />
-  <rule ref="Generic.Files.LineEndings"/>
-  <rule ref="Generic.Formatting.SpaceAfterCast"/>
-  <rule ref="Generic.Functions.FunctionCallArgumentSpacing"/>
-  <rule ref="Generic.Functions.OpeningFunctionBraceKernighanRitchie">
-    <properties>
-      <property name="checkClosures" value="true"/>
-    </properties>
-  </rule>
-  <rule ref="Generic.NamingConventions.ConstructorName"/>
-  <rule ref="Generic.NamingConventions.UpperCaseConstantName"/>
-  <rule ref="Generic.PHP.DeprecatedFunctions"/>
-  <rule ref="Generic.PHP.DisallowShortOpenTag"/>
-  <rule ref="Generic.PHP.LowerCaseKeyword"/>
-  <rule ref="Generic.PHP.UpperCaseConstant"/>
-  <rule ref="Generic.WhiteSpace.DisallowTabIndent"/>
-
-  <!-- Internal sniffs -->
-  <rule ref="Internal.NoCodeFound">
-    <!-- No PHP code in *.md, *.txt, or *.yml -->
-    <exclude-pattern>*.(md|txt|yml)</exclude-pattern>
-  </rule>
-
-  <!-- MySource sniffs -->
-  <rule ref="MySource.Debug.DebugCode"/>
-
-  <!-- PEAR sniffs -->
-  <rule ref="PEAR.Files.IncludingFile"/>
-  <!-- Disable some error messages that we do not want. -->
-  <rule ref="PEAR.Files.IncludingFile.UseIncludeOnce">
-    <severity>0</severity>
-  </rule>
-  <rule ref="PEAR.Files.IncludingFile.UseInclude">
-    <severity>0</severity>
-  </rule>
-  <rule ref="PEAR.Files.IncludingFile.UseRequireOnce">
-    <severity>0</severity>
-  </rule>
-  <rule ref="PEAR.Files.IncludingFile.UseRequire">
-    <severity>0</severity>
-  </rule>
-  <rule ref="PEAR.Functions.FunctionCallSignature.OpeningIndent">
-    <severity>0</severity>
-  </rule>
-  <rule ref="PEAR.Functions.ValidDefaultValue"/>
-  <rule ref="PEAR.Functions.FunctionCallSignature"/>
-  <!-- The sniffs inside PEAR.Functions.FunctionCallSignature silenced below are
-    also silenced in Drupal CS' ruleset.xml. The code below is a 1-to-1 copy
-    from that file. -->
-  <!-- Disable some error messages that we already cover. -->
-  <rule ref="PEAR.Functions.FunctionCallSignature.SpaceAfterOpenBracket">
-    <severity>0</severity>
-  </rule>
-  <rule ref="PEAR.Functions.FunctionCallSignature.SpaceBeforeCloseBracket">
-    <severity>0</severity>
-  </rule>
-  <!-- Disable some error messages that we do not want. -->
-  <rule ref="PEAR.Functions.FunctionCallSignature.Indent">
-    <severity>0</severity>
-  </rule>
-  <rule ref="PEAR.Functions.FunctionCallSignature.ContentAfterOpenBracket">
-    <severity>0</severity>
-  </rule>
-  <rule ref="PEAR.Functions.FunctionCallSignature.CloseBracketLine">
-    <severity>0</severity>
-  </rule>
-  <rule ref="PEAR.Functions.FunctionCallSignature.EmptyLine">
-    <severity>0</severity>
-  </rule>
-
-  <!-- PHP Compatibility sniffs -->
-  <!-- The lowest version of PHP supported by both Drupal and Acquia Cloud.
-    @see https://www.drupal.org/docs/8/system-requirements/php-requirements
-    @see https://docs.acquia.com/acquia-cloud/arch/tech-platform/
-    For instructions on overriding this value in your project,
-    @see https://github.com/acquia/coding-standards-php/pull/37 -->
-  <config name="testVersion" value="7.4-"/>
-  <rule ref="PHPCompatibility">
-    <exclude name="PHPCompatibility.Extensions.RemovedExtensions.famRemoved"/>
-  </rule>
-
-  <!-- PSR-2 sniffs -->
-  <rule ref="PSR2.Classes.PropertyDeclaration">
-    <exclude name="PSR2.Classes.PropertyDeclaration.Underscore"/>
-  </rule>
-  <rule ref="PSR2.Namespaces.NamespaceDeclaration"/>
-  <rule ref="PSR2.Namespaces.UseDeclaration">
-    <exclude name="PSR2.Namespaces.UseDeclaration.UseAfterNamespace"/>
-  </rule>
-
-  <!-- PSR-12 sniffs -->
-  <rule ref="PSR12.Functions.ReturnTypeDeclaration" />
-
-  <!-- SlevomatCodingStandard sniffs -->
-  <rule ref="SlevomatCodingStandard.Namespaces.AlphabeticallySortedUses" />
-  <rule ref="SlevomatCodingStandard.TypeHints.ParameterTypeHint" />
-  <rule ref="SlevomatCodingStandard.TypeHints.PropertyTypeHint" />
-  <rule ref="SlevomatCodingStandard.TypeHints.ReturnTypeHint" />
-  <!-- Superglobals are superbad. See linked issue for discussion.
-  @see https://github.com/acquia/coding-standards-php/issues/49 -->
-  <rule ref="SlevomatCodingStandard.Variables.DisallowSuperGlobalVariable" />
-
-  <!-- Squiz sniffs -->
-  <rule ref="Squiz.Arrays.ArrayBracketSpacing"/>
-  <rule ref="Squiz.Arrays.ArrayDeclaration">
-    <exclude name="Squiz.Arrays.ArrayDeclaration.NoKeySpecified"/>
-    <exclude name="Squiz.Arrays.ArrayDeclaration.KeySpecified"/>
-  </rule>
-  <!-- Disable some error messages that we do not want. -->
-  <rule ref="Squiz.Arrays.ArrayDeclaration.CloseBraceNotAligned">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Arrays.ArrayDeclaration.DoubleArrowNotAligned">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Arrays.ArrayDeclaration.FirstValueNoNewline">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Arrays.ArrayDeclaration.KeyNotAligned">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Arrays.ArrayDeclaration.MultiLineNotAllowed">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Arrays.ArrayDeclaration.NoComma">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Arrays.ArrayDeclaration.NoCommaAfterLast">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Arrays.ArrayDeclaration.NotLowerCase">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Arrays.ArrayDeclaration.SingleLineNotAllowed">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Arrays.ArrayDeclaration.ValueNotAligned">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Arrays.ArrayDeclaration.ValueNoNewline">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.ControlStructures.ForEachLoopDeclaration"/>
-  <!-- Disable some error messages that we already cover. -->
-  <rule ref="Squiz.ControlStructures.ForEachLoopDeclaration.AsNotLower">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.ControlStructures.ForEachLoopDeclaration.SpaceAfterOpen">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.ControlStructures.ForEachLoopDeclaration.SpaceBeforeClose">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.ControlStructures.ForLoopDeclaration"/>
-  <!-- Disable some error messages that we already cover. -->
-  <rule ref="Squiz.ControlStructures.ForLoopDeclaration.SpacingAfterOpen">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.ControlStructures.ForLoopDeclaration.SpacingBeforeClose">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Functions.MultiLineFunctionDeclaration"/>
-  <rule ref="Squiz.Functions.MultiLineFunctionDeclaration.BraceOnSameLine">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Functions.MultiLineFunctionDeclaration.ContentAfterBrace">
-    <severity>0</severity>
-  </rule>
-  <!-- Standard yet to be finalized on this
-    (https://www.drupal.org/node/1539712). -->
-  <rule ref="Squiz.Functions.MultiLineFunctionDeclaration.FirstParamSpacing">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Functions.MultiLineFunctionDeclaration.Indent">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Functions.MultiLineFunctionDeclaration.CloseBracketLine">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing">
-    <properties>
-      <property name="equalsSpacing" value="1"/>
-    </properties>
-  </rule>
-  <rule
-    ref="Squiz.Functions.FunctionDeclarationArgumentSpacing.NoSpaceBeforeArg">
-    <severity>0</severity>
-  </rule>
-  <rule ref="Squiz.PHP.LowercasePHPFunctions"/>
-  <rule ref="Squiz.Strings.ConcatenationSpacing">
-    <properties>
-      <property name="spacing" value="1"/>
-      <property name="ignoreNewlines" value="true"/>
-    </properties>
-  </rule>
-  <rule ref="Squiz.WhiteSpace.FunctionSpacing">
-    <properties>
-      <property name="spacing" value="1"/>
-    </properties>
-  </rule>
-  <rule ref="Squiz.WhiteSpace.LanguageConstructSpacing"/>
-  <rule ref="Squiz.WhiteSpace.OperatorSpacing" />
-  <rule ref="Squiz.WhiteSpace.SemicolonSpacing"/>
-  <rule ref="Squiz.WhiteSpace.SuperfluousWhitespace"/>
-
-  <!-- Zend sniffs -->
-  <rule ref="Zend.Files.ClosingTag"/>
-
-</ruleset>
diff --git a/src/Standards/AcquiaPHPMinimal/ruleset.xml b/src/Standards/AcquiaPHPMinimal/ruleset.xml
new file mode 100644
index 0000000..f1fdd79
--- /dev/null
+++ b/src/Standards/AcquiaPHPMinimal/ruleset.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!-- https://github.com/squizlabs/PHP_CodeSniffer/wiki/Annotated-Ruleset -->
+<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="../../../vendor/squizlabs/php_codesniffer/phpcs.xsd"
+         name="AcquiaPHPMinimal"
+>
+
+  <description>Acquia's PHP coding standards.</description>
+
+  <rule ref="PSR12"/>
+
+  <!-- Internal sniffs -->
+  <rule ref="Internal.NoCodeFound">
+    <!-- No PHP code in *.md, *.txt, or *.yml -->
+    <exclude-pattern>*.(md|txt|yml)</exclude-pattern>
+  </rule>
+
+  <!-- PHP Compatibility sniffs -->
+  <!-- The lowest version of PHP supported by both Drupal and Acquia Cloud.
+    @see https://www.drupal.org/docs/8/system-requirements/php-requirements
+    @see https://docs.acquia.com/acquia-cloud/arch/tech-platform/
+    For instructions on overriding this value in your project,
+    @see https://github.com/acquia/coding-standards-php/pull/37 -->
+  <config name="testVersion" value="7.4-"/>
+  <rule ref="PHPCompatibility">
+    <exclude name="PHPCompatibility.Extensions.RemovedExtensions.famRemoved"/>
+  </rule>
+
+  <!-- Apply indentation rules to all kinds of code (i.e., tokens), including comments. -->
+  <!-- @see https://github.com/squizlabs/PHP_CodeSniffer/issues/2314 -->
+  <rule ref="Generic.WhiteSpace.ScopeIndent">
+    <properties>
+      <property name="ignoreIndentationTokens" type="array"/>
+    </properties>
+  </rule>
+
+</ruleset>
diff --git a/src/Standards/AcquiaPHPStrict/ruleset.xml b/src/Standards/AcquiaPHPStrict/ruleset.xml
new file mode 100644
index 0000000..2eb2a86
--- /dev/null
+++ b/src/Standards/AcquiaPHPStrict/ruleset.xml
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!-- https://github.com/squizlabs/PHP_CodeSniffer/wiki/Annotated-Ruleset -->
+<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="../../../vendor/squizlabs/php_codesniffer/phpcs.xsd"
+         name="AcquiaPHPStrict"
+>
+
+  <description>Acquia's strict PHP coding standards.</description>
+
+  <rule ref="AcquiaPHPMinimal"/>
+
+  <!-- Drupal sniffs -->
+  <rule ref="Drupal.Commenting.InlineComment"/>
+
+  <!-- SlevomatCodingStandard sniffs -->
+  <rule ref="SlevomatCodingStandard.Arrays.AlphabeticallySortedByKeys" />
+  <rule ref="SlevomatCodingStandard.Arrays.DisallowImplicitArrayCreation"/>
+  <rule ref="SlevomatCodingStandard.Arrays.MultiLineArrayEndBracketPlacement"/>
+  <rule ref="SlevomatCodingStandard.Arrays.SingleLineArrayWhitespace"/>
+  <rule ref="SlevomatCodingStandard.Arrays.TrailingArrayComma"/>
+  <rule ref="SlevomatCodingStandard.Classes.RequireConstructorPropertyPromotion" />
+  <rule ref="SlevomatCodingStandard.Commenting.DeprecatedAnnotationDeclaration" />
+  <rule ref="SlevomatCodingStandard.Commenting.DisallowCommentAfterCode" />
+  <rule ref="SlevomatCodingStandard.Commenting.DocCommentSpacing" />
+  <rule ref="SlevomatCodingStandard.Commenting.EmptyComment" />
+  <rule ref="SlevomatCodingStandard.Commenting.ForbiddenAnnotations">
+    <properties>
+      <!-- Recommended by Slevomat -->
+      <!-- @see https://github.com/slevomat/coding-standard/blob/c72b104f89c6d7bd8b739449f9f592cda2e5072b/doc/commenting.md?plain=1#L20 -->
+      <property name="forbiddenAnnotations" type="array" value="@author,@created,@version,@package,@copyright,@license" />
+    </properties>
+  </rule>
+  <rule ref="SlevomatCodingStandard.Commenting.ForbiddenComments">
+    <properties>
+      <property name="forbiddenCommentPatterns" type="array" value="/Class .*/" />
+    </properties>
+  </rule>
+  <rule ref="SlevomatCodingStandard.Commenting.InlineDocCommentDeclaration" />
+  <rule ref="SlevomatCodingStandard.Commenting.UselessFunctionDocComment" />
+  <rule ref="SlevomatCodingStandard.Commenting.UselessInheritDocComment" />
+  <rule ref="SlevomatCodingStandard.Namespaces.AlphabeticallySortedUses" />
+  <!-- Stock configuration conflicts with PSR-12, which requires no spaces. -->
+  <!-- @see https://www.php-fig.org/psr/psr-12/#3-declare-statements-namespace-and-import-statements -->
+  <rule ref="SlevomatCodingStandard.TypeHints.DeclareStrictTypes">
+    <properties>
+      <property name="linesCountBeforeDeclare" value="1"/>
+      <property name="linesCountAfterDeclare" value="1"/>
+      <property name="spacesCountAroundEqualsSign" value="0"/>
+    </properties>
+  </rule>
+  <rule ref="SlevomatCodingStandard.TypeHints.ParameterTypeHint">
+    <exclude name="SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingTraversableTypeHintSpecification"/>
+  </rule>
+  <rule ref="SlevomatCodingStandard.TypeHints.PropertyTypeHint" />
+  <rule ref="SlevomatCodingStandard.TypeHints.ReturnTypeHint" />
+  <!-- Superglobals are superbad. See linked issue for discussion.
+  @see https://github.com/acquia/coding-standards-php/issues/49 -->
+  <rule ref="SlevomatCodingStandard.Variables.DisallowSuperGlobalVariable" />
+
+</ruleset>