The NYC DOE sets clear campus guidelines for schools co-located in DOE buildings whether they are district or charter schools. The DOE Division of Space Management Co-Location Handbook spells out the philosophy and protocols for shared campuses. It includes sections on the Building Response Team, Safety Planning, custodial services, and the building council.
For campuses with charter schools, the work of the building council is supplemented by a shared space committee.
Pages 53-56 The shared space committee
Appendix M How and when to enter shared space committee meeting minutes in PASS
Pages 61-62 Dispute Resolution Protocol
Appendix K Allocating time in shared spaces such as the gym or library