Smog stuff in CA
California dyno tests are performed at 15 and 25 mph, not 55 mph. There are many non-urban areas in California that do not require the dyno tests at all. These areas still just use the stationary tailpipe sniffer test at idle and at 2500 rpm. The dyno tests are only required in smog "enhancement" areas such as LA, San Fran, Sacramento, San Diego and other urban areas.
The requirement for military members with out of state plates to meet California smog limits in order to receive a base sticker is a relatively new one and is not mandated by California, but by the local military commanders. I suspect that enforcement of this requirement is pretty spotty, too... My local command does not require a CA smog test for an out of state car.