RCMAC may refer to: Recurrent cerebellar model articulation controller Regulated Contention Medium Access Control Raw Cotton Marketing Advisory Committee Recent change memory administration center, in late 20th century Bell System parlance, an organization of people in a phone company responsible for programming the service and features purchased by customers into the central office; sometimes mistakenly called: "recent change message accounting center" Regional Chartered Mediator Accreditation Committee Regional Courts Management Advisory Committees Residential Colleges Management Advisory Committee