diff --git a/aip/general/0001.md b/aip/general/0001.md
index 993996a2b1..dbef8b93e0 100644
--- a/aip/general/0001.md
+++ b/aip/general/0001.md
@@ -28,6 +28,27 @@ serve as the source of truth for API-related documentation at Google and the
 means by which API teams discuss and come to consensus on API guidance. AIPs
 are maintained as Markdown files in the [AIP GitHub repository][].
 
+## Scope
+
+It doesn't make sense for *every* Google API to follow the AIPs. Some relevant
+factors to consider include:
+
+- Who is writing code to call the APIs? Some AIPs (e.g. [141](AIP-141)) include
+  requirements with an expectation of APIs being called from client libraries
+  written in diverse programming languages. If the API producer is confident
+  that the API only needs to be called from Google-authored code, some of those
+  requirements may not be relevant.
+- How is the client code deployed? When the set of deployed clients is fully
+  known and fully controlled (most importantly for server-to-server APIs), many
+  requirements around compatibility can be skipped. For example, if you
+  *absolutely know* that no code exists that will call an RPC, it's safe to
+  remove that RPC.
+- Is the API actually implementing an existing API specification that can't be
+  changed? If so, AIP conformance is impossible and should be deemed out of
+  scope. Some such APIs may be REST-like but not follow AIP conventions (package
+  management APIs often fall into this category); others may not be HTTP-based
+  at all (e.g. ssh or database protocols).
+
 ## Types of AIPs
 
 There are several different types of AIPs, described below. The list of AIP
@@ -269,6 +290,7 @@ state, and will link to the new, current AIP.
 
 ## Changelog
 
+- **2023-06-09**: Added section on the scope of AIPs.
 - **2023-05-10**: Updated names of current and editors and TLs.
 - **2019-07-30**: Further clarified AIP quorum requirements.
 - **2019-05-12**: Collapsed AIP approvers and editors into a single position,
@@ -286,3 +308,4 @@ state, and will link to the new, current AIP.
 [@noahdietz]: https://github.com/noahdietz
 [@shwoodard]: https://github.com/shwoodard
 [@toumorokoshi]: https://github.com/toumorokoshi
+[aip-122]: ./0141.md
\ No newline at end of file