Mass State Police Code List?

Hi,Is there a current list of codes,

Ive found one,but there are some codes missing.



I hear a -Code 20- called out that sounded like a disabled MV..



The list I have skips from 18 to 22..



Heres what I currently have..



1 Standby for Emergency (All units to stay off the air)

2 Phone your Barracks (also refers to Cell Phone capability)

3 Phone ________

4 Cruiser out of Service

5 Cruiser in Service

6 What is your Location

7 Return to your Barracks

8 Stopping suspicious Car

9 Listing (Registration Info)

10 Stolen Check

11 License Data

12 Any Message for me

13 Radio Test

14 Missing or Wanted (also known as M&W)

15 Officer In Trouble

16 Investigation (Motor Vehicle Accident)

17 Clear

18 Permission to leave Patrol

22 Cellular Caller/Complaint