diff --git a/documentation/milestones/milestone_dependency_diagram.mmd b/documentation/milestones/milestone_dependency_diagram.mmd
index 16a16e655..3f7bbfad2 100644
--- a/documentation/milestones/milestone_dependency_diagram.mmd
+++ b/documentation/milestones/milestone_dependency_diagram.mmd
@@ -134,6 +134,7 @@ flowchart LR
         Onboard-Dev-Team --> DB-Replica
         Beta-Domain
         Beta-Domain --> Static-Site
+        DB-API-Plan --> Infrastructure-as-Code
         DB-Replica & DB-API-Plan --> DB-Test-Data
         DB-API-Plan & DB-Test-Data & DB-Replica & Dev-Tools & Beta-Domain --> GET-Opportunities:::northStar
         DB-API-Plan & GET-Opportunities --> Webhooks-Opportunities
@@ -144,6 +145,7 @@ flowchart LR
         DB-API-Plan --> API-Versioning
         DB-API-Plan --> Performance-Testing
         DB-API-Plan --> Opportunity-Protocol
+        DB-API-Plan--> AB-Testing-Plan
         ATO
         CI-CD
         DB-API-Plan --> CI-CD
diff --git a/documentation/milestones/milestone_short_descriptions.md b/documentation/milestones/milestone_short_descriptions.md
index aee97301e..1177d9dd5 100644
--- a/documentation/milestones/milestone_short_descriptions.md
+++ b/documentation/milestones/milestone_short_descriptions.md
@@ -104,6 +104,13 @@ Make an analysis of needs and alternatives and choose:
 * API language (e.g., Python, Node)
 * API deployment (e.g., EC2, serverless, or alternative)
 
+## Infrastructure-as-code
+Diagram short name: `Infrastructure-as-Code`
+
+Dependencies: `DB-API-Plan`
+
+Setup and deploy initial infrastructure, with 100% of the deployment managed through an infrastructure-as-code solution.
+
 ## Serialization and API documentation planning
 Diagram short name: `API-Docs-Plan`
 
@@ -274,6 +281,15 @@ Much more investigation is needed to define this milestone.
 
 For some research on common form fields, please see [this analysis from Technology Association for Grantmakers](https://www.tagtech.org/news/586811/TAG-Publishes-List-of-Common-Grant-Fields-from-FixtheForm-Analysis-.htm).
 
+## Plan for A/B testing
+Diagram short name: `AB-Testing-Plan`
+
+Dependencies: `DB-API-Plan`
+
+Make a plan for the technological and legal/process aspects of A/B testing experiences in beta.grants.gov.
+
+This plan will need to account for any concerns about fairness that could be brought up by exposing some users to updated content as compared to other users.
+
 # Communications Tooling
 
 ## Communication platforms