Santa Monica Airport (KSMO) noise management apparently disagrees. The P180 is on the
banned aircraft list. Admittedly, the people's republic of SMO is heavily influenced by a bunch of hypocritical burned out hippie radical nut jobs with a NIMBY mindset, but their method of noise measurement is professionally administered and routinely calibrated. I had to work pretty hard to keep my 2 decades long record of no noise-o-meter busts intact while flying aircraft ranging from C-210s to Hawkers.
Though they gave it a good effort, the pilots trying to develop a repeatable and safe method of complying with the noise limits at SMO in the P180 were ultimately unsuccessful in their endeavor. Unlike most jets, they busted the noise limits on approach rather than departure.