Definitions for "HAPs"
High Altitude Platforms
A High Altitude Platform Station or HAPS is an unmanned aerial vehicle (UAV) which is to remain relatively stationary at high altitude.
Keywords:  gact, caaa, mact, iii, comply
Any of the 189 chemicals listed under Title III of the CAAA. All HAP sources will have to comply with GACT or MACT standards.
Keywords:  pollutants, hazardous, air
Hazardous air pollutants.