Readds content-requiring-prior-approval section in contributing

.github/CONTRIBUTING.md

@@ -11,7 +11,8 @@
 6. [Pull Request Process](#pull-request-process)
 7. [Porting features/sprites/sounds/tools from other codebases](#porting-featuresspritessoundstools-from-other-codebases)
 8. [Banned content](#banned-content)
-9. [A word on Git](#a-word-on-git)
+9. [Content requiring prior approval](#content-requiring-prior-approval)
+10. [A word on Git](#a-word-on-git)
 
 ## Reporting Issues
 If you ever encounter a bug in-game, the best way to let a coder know about it is with our GitHub Issue Tracker. Please make sure you use the supplied issue template, and include the round ID for the server.
@@ -678,6 +679,14 @@ Do not add any of the following in a Pull Request or risk getting the PR closed:
 
 Just because something isn't on this list doesn't mean that it's acceptable. Use common sense above all else.
 
+## Content requiring prior approval
+Certain types of changes may require prior approval from maintainers. This currently includes:
+
+* Code adding, removing, or updating the availability of alien races/species/human mutants. This includes pull requests attempting to add or remove features from said races/species/mutants. (Requires approval from at least one maintainer)
+* Code adding, removing, or modifying the functionality of adult-oriented features (such as, but not limited to: vore, genitals, MKUltra, and more). This also includes pull requests attempting to add or remove these features outright. (Requires approval from at least half of the formal maintainer team)
+
+The above content requires approval from the specified amount of maintainers prior to PR creation. Seeking approval must be done via a @Maintainer ping in a relevant development/code or staff channel on the Discord, otherwise it will be considered insufficient. If a PR contains any of the above content, but the creator does not have sufficient approval prior to the PR's creation, then the PR may be closed by any maintainer, at any time, for any reason.
+
 ## A word on Git
 This repository uses `LF` line endings for all code as specified in the **.gitattributes** and **.editorconfig** files.