In an attempt to rid the country of "decadent Western cuts", Iran's culture ministry has produced a catalogue of haircuts that meet government approval.The list of banned styles includes ponytails, mullets and elaborate spikes. However,quiffs appear to be acceptable, as are fashioning one's hair in the style of Simon Cowell or cultivating a 1980s-style floppy fringe.
Who wouldn't want to see ponytails, mullets and spikes banned? In general I don't agree with limits being set on style but the fashionistas may be on to something here.
Link
This paragraph in one article seems to go directly against what you're saying:
"First time violators will receive an unflattering short-back-and-sides cut. But serial offenders face stiff fines. And barber shops catering to western styles, can be shut down."