3.E: New Mexico

New Mexico’s state regulations effectively incorporate the most recent version of ASTM D4814 Standard Specification for Spark-Ignition Engine Fuel by making general reference to adoption “of those last [quality standards] adopted and published by ASTM”. The applicable federal parameters and limits are listed in Fig. 1 of Part 1 of this report, whereas the applicable, non-volatility-related ASTM D4814 parameters and limits are listed in Fig. 3 of Part 1 of this report.

The ASTM standard outlines two conventional formulations for the state: one for areas south of the 38th parallel, and another for areas north of that parallel, with the northern standard featuring slightly more permissive volatility limits during the months of January, March and April. Per state regulations, an