10. Unit markings.—Gasoline solvent paint or paint as prescribed by the War Department will be used.

a. Unit markings.—National symbol.

(1) A white five-pointed star will be the national symbol of all motor vehicles assigned to tactical units. Administrative motor vehicles operating in an active theater of operations will be similarly marked when directed by the theater commander.

(2) The size of the national symbol will be determined for each type of motor vehicle and will be large enough to take advantage of the surface upon which to be painted. See figures 1 to 34.

(3) Whenever requirements for camouflage and concealment outweigh the requirements for recognition, the national symbol may be covered by lusterless olive-drab gasoline solvent paint, camouflage nets, oil and dirt, etc., or will be removed.

b. Unit identification symbols.

(1) Front and rear markings.—See figures 1 to 34 for location.

(a) General.—Front and rear markings are identical and consist of four groups in consecutive order, from the left to right when facing the vehicle, separated by a dash 1 inch long. Markings may be on a single line or on two lines, but in no case will groups be broken nor order of groupings be changed. If two lines are used, the first and third groups will be on the top row. Composition of groups is indicated below.

(b) First group.—The first group will designate the smallest appropriate unit listed below in accordance with the following code:

(c) Second group.—The second group will designate separate regiment, separate brigades; groups, separate battalions, or separate companies, and similar units by appropriate number or symbol, followed by arm or service in accordance with abbreviations listed below. When indicating headquarters and headquarters companies or special companies of units identified in first group, the second group will consist only of the letter "X." When indicating brigades, the numeral will be underlined.

(d) Third group.—The third group will designate companies and similar organizations by letters in accordance with the following code:

(e) Fourth group.—The fourth group will designate the serial number of the vehicle in normal order of march within the organization to which it is assigned. Vehicles assigned to any headquarters will be combined for purposes of numbering with those of the appropriate headquarters company or similar organization, and will be given the smaller serial numbers used therein.

(2) Examples.

(a)	1—X—HQ—10		10th vehicle, Hq Co, 1st Inf Div.
	1—X—1S—10		10th vehicle, 1st Sig Co, 1st Inf Div.
	1—X—1R—10		10th vehicle, 1st Rcn Tr, 1st Inf Div.
	1—16-I—A—10		10th vehicle, Co A, 16th Inf, 1st Inf Div.
	1—F—HQ—10		10th vehicle, Hq Btry, Div Arty, 1st Inf Div.
	1—33F—D—10		10th vehicle, Btry D, 33d FA Bn, 1st Inf Div.
	1—1E—A—10		10th vehicle, Co A, 1st Engr Bn, 1st Inf Div.
	1—1M—A—10		10th vehicle, Co A (Coll), 1st Med Bn, 1st Inf Div.
	1—1Q—A—10		10th vehicle, Co A, 1st QM Bn, 1st Inf Div.
(b)	1Δ—X—SV—10		10th vehicle, Serv. Co, 1st Armd Div.
	1Δ—81R—A—10		10th vehicle, Co A, 81st Rcn Bn, 1st Armd Div.
	1Δ—1Δ—A—10		10th vehicle, Co A, 1st Armd Regt, 1st Armd Div.
	1Δ—27F—A—10		10th vehicle, Btry A, 27th FA Bn, 1st Armd Div.
	1Δ—16E—A—10		10th vehicle, Co A, 16th Engr Bn, 1st Armd Div.
	1Δ—6–I—A—10		10th vehicle, Co A, 6th Inf, 1st Armd Div.
	1Δ—TN—HQ—10		10th vehicle, Hq Co, Div Tn, 1st Armd Div.
	1Δ—1-O—A—10		10th vehicle, Co A, Maint Bn, 1st Armd Div.
	1Δ—1Q—A—10		10th vehicle, Co A, Sup Bn, 1st Armd Div.
(c)	1C—X—HQ—10		10th vehicle, Hq Tr, 1st Cay. Div.
	1C—X—1S—10		10th vehicle, 1st Sig Tr, 1st Cav Div.
	1C—91R—A—10		10th vehicle, Tr A, 91st Rcn Sq, 1st Cav Div.
	1C—X—27-O—10		10th vehicle, 27th Ord Co, 1st Cav Div.
	1C—1C—HQ—10		10th vehicle, Hq Tr, let Cav Brig, 1st Cav Div.
	1C—12C—HQ—10		10th vehicle, Hq Tr, 12th Cav, 1st Cav Div.
	1C—F—HQ—10		10th vehicle, Hq Btry, Div Arty, 1st Cav Div.
	1C—61F—A—10		10th vehicle, Btry A, 61st FA Bn, 1st Cav Div.
	1C—8E—A—10		10th vehicle, Tr A, 8th Engr Bn, 1st Cav Div.
	1C—1M—A—10		10th vehicle, Tr A, let Med Sq, 1st Cav Div.
	1C—1Q—A—10		10th vehicle, Tr A, 1st QM Sq, 1st Cav Div.
(d)	2A—21Q—A—10		10th vehicle, Co A, 21st QM Regt, Second Army.
	3A—61Q—A—10		10th vehicle, Co A, 61st QM Bn, Third Army.
	★—1Q—SVAV—10		10th vehicle, 1st QM Co, Serv Gp, (Avn) AAF.
	3A—21Q—CAR—10		10th vehicle, 21st QM Car Co, Third Army.
	3A—56Q—COM—10		10th vehicle, 56th QM Sales Comm Co, Third Army.
	3A—67Q—REF—10		10th vehicle, 67th QM Ref Co, Third Army.
	4A—79Q—DP—10		10th vehicle, 79th QM Depot Co, Fourth Army.
	1A—87Q—RHD—10		10th vehicle, 87th QM Rhd Co, First Army.
	1A—132Q—TRK—10		10th vehicle, 132d QM Trk Co, First Army.
	★—862Q—MT—10		10th vehicle, 862d QM L Maint Co, AAF.
(e)	GHQ—101M—A—10		10th vehicle, Co A, 101 Med Regt, GHQ.
	II—40M—A—10		10th vehicle, Co A, 40th Med Bn, II Army Corps.
	3A—1M—VET—10		10th vehicle, 1st Vet Co, Third Army.
	II—701M—SAN—10		10th vehicle, 701st Sn Co, II Army Corps.
	II—3M—EV—10		10th vehicle, 3d Evac Hosp, II Army Corps.
	3A—53M—GEN—10		10th vehicle, 53d Gen Hosp, Third Army.
	1A—151M—STA—10		10th vehicle, 151st Sta Hosp, First Army.
	3A—63M—SUR—10		10th vehicle, 63d Surg Hosp, Third Army.
	3A—16M—VET—10		10th vehicle, 16th Vet Evac Hosp, Third Army.
	1A—1M—DP—10		10th vehicle, 1st Med Sup Dep, First Army.
	3A—2M—LAB—10		10th vehicle, 2d Med Lab, Third Army.
(f)	1A—101P—A—10		10th vehicle, Co A, 101st MP Bn, First Army.
	ZI—704P—A—10		10th vehicle, Co A, 704th MP Bn, ZI.
	IV—X—44P—10		10th vehicle, 44th MP Co, IV Army Corps.
(g)	IX—18E—A—10		10th vehicle, Co A, 18th Engr, IX Army Corps.
	II—62E—D—10		10th vehicle, Co D, 62d Top Engr, II Army Corps.
(h)	1A-41-O—A—10		10th vehicle, Co A, 41st Ord Bn, First Army.
	I—1-O—HQ—10		10th vehicle, Hq & Hq Det, 1st Ord Bn, I Army Corps.
	3A—X—60-O—10		10th vehicle, 60th Ord Co, Third Army.
	★—714-O—AB—10		10th vehicle, 714 Ord Co, AB, AAF.
(i)	IIΔ—1S—A—10		10th vehicle, Co A, 1st Sig Bn, I Armd Corps.
	III—26S—A—10		10th vehicle, Co A, 26th Sig Bn, III Army Corps.
	★—X—S—10		10th vehicle, Sig Co, AAF.
	III—X—280S—10		10th vehicle, 280th Sig Co, III Army Corps.
	ZI—1S—SV—10		10th vehicle, 1st Sig Serv Co, ZI.
(j)	1A—2G—A—10		10th vehicle, Co A, 2d Cml Bn, First Army.
	3A—3G—MT—10		10th vehicle, 3d Cml Co Maint, Third Army.
	3A—3G—DP—10		10th vehicle, 3d Cml Co, Dep, Third Army.
(k)	II—13F—HQ—10		10th vehicle, Hq Btry, 13th FA Brig, II Army Corps.
	I—17F—A—10		10th vehicle, Btry A, 17th FA, I Army Corps.
	1A—6F—A—10		10th vehicle, Btry A, 6th FA Bn, First Army.
	GHQ—71F—A—10		10th vehicle, Btry A, 71st FA Bn, GHQ.
	I—1FOB—A—10		10th vehicle, Btry A, 1st FA Obsn Bn, I Army Corps.
(l)	3A—33CA—HQ—10		10th vehicle, Hq Btry, 33 CAC Brig, Third Army.
	1A—2CA—A—10		10th vehicle, Btry A, 2d CAC, First Army.
	AA—302CA—A—10		10th vehicle, Btry A, 302 CAC, AA Comd.
(m)	2A—601TD—A—10		10th vehicle, Co A. 601 TD Bn, Second Army.
	TD—693TD—A—10		10th vehicle, Co A, 693 TD Bn, TD Comd.
(n)	★—850E—A—10		10th vehicle, Co A, Engr Bn Avn, AAF.

(3) How marked.—Unit identification markings will be painted in white letters on olive-drab background.

(4) Height of letters and figures.—Letters and figures will be of a character style and dimensions as designed for use for traffic signs. Where space does not permit this size, letters and figures will conform to space available. See figure 35.

(5) Marking not required.—Rear marking only is required on trailers, except on trailer, bomb, M5 and trailer, tractor, crane (see figs. 29 and 30). Unit marking will be placed on motorcycles when practicable.

(6) Removal of unit markings.—The first two groups of unit markings will be removed from all motor vehicles when leaving home stations for movement to theaters of operations or ports of embarkation and in the theater of operations when directed by the theater commanders.

(7) Administrative vehicles, motor vehicles assigned to administrative units or functions at posts, camps, and stations or similar activities will substitute abbreviations or words for the first two groups in order to show station and activity represented, Abbreviations will be those commonly used and where practical will conform to those prescribed in these regulations.