N.M. Stat. § 62-21-8
Deposit public support money in special fund.
A. A regional or local government that receives money from public support for an
essential services project shall create a special fund into which the money from the
public support shall be deposited and shall be expended only for essential services
project purposes. Separate accounts shall be established for each essential services
project.
B. In the case of a regional government, money from public support may be
expended only as provided by the regional government's essential services
development plan and joint powers agreement.