What is the name of the document Sheldon creates to govern his living arrangement with Leonard?

The document Sheldon creates to govern his living arrangement with Leonard is the Roommate Agreement. Sheldon drafts the elaborate document after he and Leonard become roommates, turning everyday domestic arrangements into a formal set of rules, clauses, schedules, and obligations.

The agreement reflects Sheldon’s need for predictability and control. It addresses practical matters such as household responsibilities, bathroom routines, temperature settings, guests, food, and entertainment. It also includes deliberately absurd provisions involving hypothetical situations such as robots, time travel, and zombies. Leonard signs it, even though the agreement is written largely to protect Sheldon’s preferences.

The document is first referred to as a friendship agreement before the series more consistently calls it the Roommate Agreement. It becomes a recurring source of comedy whenever Sheldon claims Leonard has violated one of its clauses. Sheldon later creates similar contracts, including a Relationship Agreement with Amy, but that is a separate document and is not the agreement governing his apartment with Leonard.