Coast Artillery Harbor Defense, U.S. Army, 7.12.1941

Motor Vehicles authorized to Harbor Defense Commands 1 July 1942
Harbor Defenses of	Ambulance (0.75-ton) (4×4)	Car (5-seats) (Light Sedan)	Truck (0.25-ton) (4×4)	Truck (0.5-ton) (Command)	Truck (0.5-ton) (Weapons Carrier)	Truck (1.5-ton) (4×4) (Cargo)	Truck (2.5-ton) (6×6) (Cargo)	Heavy Tractor (M1) [1]
Boston	2	3	10	4	26	10	10	3
Long Island Sound	2	3	10	3	19	10	7	2
Narragansett Bay	3	3	12	7	19	14	14	4
New Bedford	2	1	6	2	6	4	2	2
Portland	2	3	8	3	19	7	7	3
Portsmouth	2	1	5	2	8	5	3	1
Delaware River	2	3	13	6	16	12	6	3
Eastern New York	1	—	1	1	1	1	—	—
Sandy Hook	2	3	17	6	22	14	8	2
Southern New York	2	1	8	3	11	6	4	2
Chesapeake Bay	3	3	18	7	19	15	7	4
Charleston	2	3	11	4	12	9	5	1
Key West	1	1	2	1	2	1	1	1
Pensacola	2	1	8	3	8	6	3	2
Galveston	2	1	8	3	11	6	4	2
Columbia River	2	3	8	2	15	6	6	1
Los Angeles	2	1	8	3	8	6	3	2
Puget Sound	3	3	13	4	18	10	7	2
San Diego	2	1	9	3	11	8	4	2
San Francisco	4	10	16	27	30	25	60	4

NOTES:

[1] The M1 Heavy Tractor was an "off the shelf" tracked tractor to tow artillery pieces. They were not equipped with blades. The 7.5-ton truck (6×6) prime mover (Field Artillery) with winch, could be issued in lieu of the heavy tractor (M1).

[2] Motor vehicles for the Hawaiian, Philippine, Puerto Rico, and Panama Canal departments were authorized in accordance with special allowances.