1. Commercial-off-the-shelf products
2. Commercial, performance-based services, such as aircraft services, grounds maintenance, vehicle maintenance, fleet management services, postal services, equipment repair, medical services, janitorial services, airfield wildlife control, etc.
3. Construction services, such as minor construction, renovation and repair, repair and replacement of airfield concrete, asphalt paving, repair and replace curbs and sidewalks, roofing, stripping and rubber removal, etc.
4. Architectural and engineering services.