Aspects of the legislation could conflict with Spanish and European law.
The conflict concerns taxis that are part of the Taxitour of Palma and which park near to the Cathedral.
Boats in posidonia zones are supposed to now have to use ecological buoys, but checking on this seems to be limited.
The BBC's Panorama found that one in five of cabin crew had suffered physical abuse.
Aemet is forecasting highs in the mid-30s, climbing to 38C on Sunday.