N.M. Code R. § 3.2.20.26
An agency, institution, instrumentality or political subdivision of the state of New Mexico does not have to register to file tax returns under the Gross Receipts and Compensating Tax Act only if the entity's receipts are entirely from:
B. activities which are exempt under the sections cited in Section 7-9-12 NMSA 1978.
[9/17/91, 10/2/92, 11/15/96; 3.2.20.26 NMAC - Rn, 3 NMAC 2.100.26 & A, 4/30/01]