Emergency custody or involuntary admission process; alternative transportation model. Directs the Commissioner of Behavioral Health and Developmental Services and the Director of Criminal Justice Services, in conjunction with the relevant stakeholders, to develop a comprehensive model for the use of alternative transportation providers to provide safe and efficient transportation of individuals involved in the emergency custody or involuntary admission process as an alternative to transportation by law enforcement. The bill requires that the model be completed by October 1, 2017, and reported to the Joint Subcommittee to Study Mental Health Services in the Commonwealth in the 21st Century, the House Committee for Courts of Justice, and the Senate Committee for Courts of Justice. This bill is identical to SB 1221.