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- 000 Photorevised
- 001 End of transmission line at power station/substation
- 002 End of pipeline at oil or gas field
- 003 End of pipeline at refinery, depot or tank farm
- 201 Pipeline
- 202 Power transmission line
- 203 Telephone or telegraph line
- 204 Aerial tranway, monorail, ski lift
- 205 Arbitrary extension closure line
- 300 Seaplane anchorage
- 400 Power station
- 401 Substation
- 402 Hydroelectric plant
- 403 Landing strip, airport, perimeter of airport
- 404 Heliport, perimeter of heliport
- 405 Launch complex, perimeter of launch complex
- 406 Pumping station, compressor station
- 407 Seaplane ramp or landing area
- 600 Underground
- 601 Under construction
- 602 Abandoned
- 603 Above ground
- 604 Labeled "closed"
- 605 Unimproved, loose surface
- 606 Submerged
- 607 Nuclear
- 000 Area outside DLG
- 193 Angle of clockwise rotation (nearest whole degree)
- 198 Best estimate of position or classification
- 199 Coincident feature (5=hydr/17=road/18=rail/19=pipe)