N.M. Code R. § 20.11.3.127
Notwithstanding the other requirements of 20.11.3 NMAC, highway and transit projects of the types listed in Table 3 of 20.11.3.127 NMAC are exempt from regional emissions analysis requirements. The local effects of these projects with respect to CO, PM2.5 or PM10 concentrations shall be considered to determine if a hot-spot analysis is required prior to making a project-level conformity determination. These projects may then proceed to the project development process even in the absence of a conforming transportation plan and TIP. A particular action of the type listed in Table 3 of 20.11.3.127 NMAC is not exempt from regional emissions analysis if the MPO in consultation with other agencies (see Subparagraph (c) Paragraph (1) of Subsection D of 20.11.3.105 NMAC), the EPA and the FHWA (in the case of a highway project) or the FTA (in the case of a transit project) concur that it has potential regional impacts for any reason. Table 3 follows:
TABLE 3. PROJECTS EXEMPT FROM REGIONAL EMISSIONS ANALYSES
Intersection channelization projects
Intersection signalization projects at individual intersections
Interchange reconfiguration projects
Changes in vertical and horizontal alignment
Truck size and weight inspection stations
Bus terminals and transfer points
N.M. Code R. § 20.11.3.127