| APH | Aerial Photo |
| AGA | Agricultural Aerial Application |
| AG | Agriculture |
| ACA | Aircraft Assembly |
| ACM | Aircraft Museum |
| ACPS | Aircraft Part Sales |
| ACPM | Aircraft Parts Manufacturer |
| ACR | Aircraft Repair |
| ACS | Aircraft Sales |
| AIRL | Airline |
| AP | Apartment House |
| AR | Artisan |
| MODS | Aviation Modification Services |
| AV | Avionics |
| BH | Banquet Hall |
| BA | Bar |
| BB | Bed And Breakfast |
| BL | Building |
| BU | Business |
| CA | Casino |
| CS | Catering Service |
| COP | Charter Operation |
| CH | Church |
| CL | Club |
| CM | Comedy Club |
| CC | Commercial Condominium |
| CTD | Commercial Trailer Dealer |
| CO | Condo |
| CN | Construction |
| CT | Contractors |
| CV | Convenience/Grocery Store |
| CR | Crafts |
| DC | Day Care |
| DE | Deli |
| DN | Diner |
| DIST | Distributors |
| DT | Drive-Through |
| FR | Family Style Restaurant |
| FA | Fast Food |
| FI | Financial Institution |
| FD | Fine Dining |
| FBO | Fixed Based Operator |
| FS | Flight School |
| FF | Fuel Farm |
| FH | Funeral Home |
| GA | Garage |
| DEALR | Garage Dealers |
| SERND | Garage Service/Non Dealers |
| GC | Gentlemen's Club |
| GV | Governmental |
| HB | Habitational |
| HE | Health Care |
| HO | Helicopter Operator |
| HC | Holding Company |
| HM | Home Office/Business |
| IND | Industrial |
| IN | Institutional |
| INE | Institutional - Educational |
| ING | Institutional - Governmental |
| INH | Institutional - Health Care |
| LC | Leasing Company |
| LT | Leasing Company and Temporary Agency |
| LS | Liquor Store |
| MN | Manufacturing |
| OM | Medical Office |
| ME | Mercantile |
| MDLR | Mercantile Dealer |
| MDSTR | Mercantile Distributor |
| MI | Mining |
| MHTD | Mobile Home Trailer Dealer |
| MO | Motel/Hotel |
| NC | Night Club |
| NM | Non-Manufacturing |
| NA | Not Applicable |
| NP | Not for Profit |
| OF | Office |
| OEDM | Original Equipment Designers or Manufacturers |
| OT | Other |
| PB | Pawn Broker |
| PI | Private |
| PH | Private Hangar |
| PO | Processing |
| PR | Professional Organization |
| PU | Public |
| RE | Real Estate |
| RMA | Regional/Municipal Airport |
| RN | Rental |
| REPS | Repair Services |
| RS | Restaurant |
| RO | Restaurant Without Table Service |
| RW | Restaurant With Table Service |
| RL | Retail |
| SV | Service |
| SGPP | Storage/Garage/Public Parking |
| SUBC | Subcontractors |
| TV | Tavern |
| TC | Telecommuter |
| TA | Temporary Agency |
| TR | Transportation |
| TK | Trucking |
| WL | Wholesale |