Okla. Admin. Code § 158:50-5-1 – License types

(a) Mechanical licenses shall be issued as journeyman, contractor or inactive contractor.
(b) Licenses shall be issued for the following categories:
1. (1) HVAC limited or unlimited
2. (2) Natural Gas Piping
3. (3) Process Piping
4. (4) Refrigeration
5. (5) Sheet Metal
6. (6) Ground Source Piping
7. (7) Fueled Hearth Product Work
8. (8) Limited Residential (journeyman only)
9. (9) Limited Residential Installer (journeyman license type)
10. (10) Petroleum Refinery Process Piping (journeyman only)
11. (11) Medical Gas (journeyman only)

Added at 19 Ok Reg 732, eff 1-22-02 (emergency)

Added at 19 Ok Reg 1276, eff 5-28-02

Amended at 26 Ok Reg 388, eff 11-14-08 (emergency)

Amended at 26 Ok Reg 2458, eff 7-11-09

Amended at 30 Ok Reg 776, eff 10-30-12 (emergency)

Amended at 30 Ok Reg 1543, eff 7-11-13

Amended at 35 Ok Reg 925, eff 10-1-18

Amended at 37 Ok Reg 1055, eff 10-1-20