Complex and high performance endorsements have been required longer than that, but the regulation was re-written in 1997.
Don't call the FSDO. The FSDO does NOT have the authority to interpret a regulation. The FSDO initiates enforcement action and processes things at the field level. Legal interpretations are issued through legal counsel at the regional and national levels.
Learning regulation will be central to keeping your career intact. Now is as good a time as any to start. Don't speculate. Ignorance of the regulation will not serve in your defense. Your best bet is to get to know the system, and the regulation, and make it work for you.
Don't call the FSDO. The FSDO does NOT have the authority to interpret a regulation. The FSDO initiates enforcement action and processes things at the field level. Legal interpretations are issued through legal counsel at the regional and national levels.
Learning regulation will be central to keeping your career intact. Now is as good a time as any to start. Don't speculate. Ignorance of the regulation will not serve in your defense. Your best bet is to get to know the system, and the regulation, and make it work for you.