TOWING CODES
Towing Codes
Bob's Towing said that if you don't know what these are (T-1A to T-7), then don't apply. 
 

Channel	Frequency	Service areas	Call Sign
1	150.905	1,4,5,6,44/48,59,A6,A32,A51	WZT846 (a)
4	150.965	9,10,12,15,22	WZT846 (b)
2	452.550	55,65,66,68,A54,A55,A56,A581A68,A69	WRM833
7	452.575	50,51,54/63,57,61,A67	WXY454
3	452.600	3,16,20,23,24,36,A15	WZT850
5	452.525	7,18,21,27,28,29,31,37,40,41,42,43,45, 46,47,A19,A20,A21,A29,A41,A44,A46,A48,A49	KLS515
6	150.950	2,8,11,30,53,62,94,95,97,98,99,67	KDU646

10-codes
Code	What It Means
10-1	Ready to write
10-2	On location
10-3	Clear call
10-4	Message Received
10-5	With car, need member on location
10-6	Got call in your hat/area
10-7	Off the air/unavailable
10-8	On the air/available for calls
10-9	Can't copy the transmission
10-10	Can't locate
10-11	GOA
10-12	Walk in call
10-13	Call canceled
10-14	Land line/phone call
10-15	Return to shop
10-16	Shop call
10-18	Request truck to truck communication
10-20	Give location
10-50	Accident w/injury
10-51	Enroute to call

Trouble Calls:"T" calls
Code	What It Means
T-1	Flat tire w/spare
T-2	Keys locked in car
T-3	Out of Gas
T-4	Jump Start/Boost
T-6	Tow
T-7	Extracation/Pull out of ditch
T-8	Bail Bond
T-9	Police Call
T-1a	Flat tire needs air
T-2a	Locksmith Problem call
T-5	Can't start Posible tow
T-6a	Tow /Special Equipment
T-7a	Extrication from Ice/snow