Why hasn the NMRA issued a check gauge for S scale?
For a number of years, the standards approved by the NMRA and those approved by the NASG (National Association of S Gaugers) differed. The NASG offered a check gauge and was trying to convince the NMRA to accept its standards. After a lot of discussion, the NMRA did accept the NASG standards as their own. Since the NASG offered the gauge, it probably seemed the effort to produce a second one was not necessary. Back to the top!