Team Trainer Exam Taken from the 2017 Northern Regional Contest held in Clymer, New York Progress Indicator: Question 1 of 30 1.  In accordance with 30 CFR §49.6(a)(6), each mine rescue station shall be provided with at least the following equipment: Four gas detectors appropriate for each type of gas that may be encountered at the mines serve. The gas detectors must measure concentrations of methane from 0.0 percent to 100 percent of volume. Choices: True False