Scouts attending Scoutmaster Conference and Board of Review need to come in full class A, with their merit badge sash, , Scout book, neckerchief and slide.
All Scouts should come to Court of Honors - COH in full class A.
For Class A Uniforms, all patches should be current and in the correct place, see the photos below.

Merit badge sash and any medals earned are not needed for normal Troop meetings.
Travel to and from Troop campouts are done in Class A, once scouts arrive at camp they can (and should) change into, Activity Uniform, also called Class B.

Uniform:

1) BSA Uniform Short Sleeve Shirt   (Scout will grow)

2) Green shoulder tabs  loops

3)  Long blue jeans and shoes or boots are Class A Uniform in Troop 373.

4) A BSA Scout Belt is worm with the long blue jeans, if a brass BSA belt, the belt should be adjusted so the brass buckle is just touching the brass end piece.

As a Life Scout working on Eagle Rank: For all Eagle Scout, meetings, Eagle Scoutmaster Conferences and Eagle Board of Review require: official BSA pants with black or brown polished shoes with official BSA socks. With Merit badge sash, Troop neckerchief and official BSA slide. See Troop 373 Life to Eagle Page

For some  Council and District events [like being a color guard], official BSA pants maybe required, if required this information would be given to you before the event, 

4a) Your BSA Scout book (Scouts BSA)  is part of your uniform, for all but COH. 

5) Green and Red neckerchief  with BSA slide ----->

6) Uniform Patches:
 

Left Pocket:
a) The World Crest emblem should be worn by all scouts. It symbolizes the brotherhood of Scouting around the world. The emblem should be, worn centered horizontally above the left pocket, and placed vertically between the left shoulder seam and the top of the pocket.
b) One  Square knot, if earned as a Cub Scout or Scout BSA, is centered above the pocket. The medal associated with the knot can be worn to COHs, full Class A.
Rank patch is centered on the pocket.
 c) Arrow of Light - AOL if earned worn under the pocket.

Right Pocket:  May have a temporary BSA Patch, This can be any BSA patch centered on the right pocket (sewn or hanging), I

If in the OA, the OA Lodge patch should be on the pocket flap. Sew the Lodge patch just along the top. (An OA sash is for OA events only)

 
 

Right Sleeve: US Flag and Patrol Patch.

 
 

Left Sleeve
The council shoulder patch (CSP) is  Greater Los Angeles Area Council   emblem is worn directly below the shoulder seam on the left sleeve.
Green 373 just under the CSP.  Get from Troop    
If trained for your position, trained patch is on the pocket flap.
Troop position patch (one only) on the pocket. (you may have more than one position, but can only have one patch)
 Some uniforms, do not have pocket, are used the same.

 

7) Merit Badge Sash:  Merit Badges are put 3 across  starting at the top, check the merit badge book or an online reference page to ensure placement is right side up. If sewing, staple in place before sewing. As a general rule put the merit badges in the order they are earned.  The sash comes in three lengths, 30, 36 and 42 inches. Do not get the 3. your scout will grow. If you fill the front of the sash, the patches then start up the back from the bottom. No non-merit badge patches may go on the back or front.  Merit Badges are award at COHs.
FYI, the Eagle Scout required (also for Star and Life) merit badges have a silver boarder. 

The Sash is worm for all formal occasions like to COH, Scoutmaster Conference and Board of Review. Also to community Color Guard events. The sash goes on the right shoulder.   

The sash  is sold at the Scout shop 3450 E Sierra Madre Blvd, Pasadena, CA 91107 and online at https://www.scoutshop.org/nsearch/?q=Scouts+BSA+Merit+Badge+Sash  

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A) Comes with shirt   B) Required check what Patrol   D) Required Green Loops   E) OA optional F) Optional  G) Optional  H) World Patch required   I) Rank Awarded by Troop  J)  Optional if earned in Pack 

k) Required    K)  373 get from Troop  M)  Office see Scoutmaster  O) Buy after first Merit earned

 
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If Den Chief

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Where do I get Scout stuff?

Uniforms (and books) can be bought at the BSA council store:

Activity Uniform (Class B)  Troop 373 Shirts are sold at Troop 373 meeting. Ask Scoutmaster.

For Camp outs a Field Uniform (Class B) in Troop 373 is any type of BSA T-shirt or any solid color T-shirt of any color (but not Black).
Also Blue Jeans or Blue Jeans Shorts.