The State Department of Public Health shall promulgate regulations governing the licensing of marijuana manufacturers and testing laboratories. Licenses to be issued are as follows:
(a) “Manufacturing Level 1,” for sites that manufacture marijuana products using nonvolatile solvents, or no solvents.
(b) “Manufacturing Level 2,” for sites that manufacture marijuana products using volatile solvents.
(c) “Testing,” for testing of marijuana and marijuana products. Testing licensees shall have their facilities or devices licensed according to regulations set forth by the department. A testing licensee shall not hold a license in another license category of this division and shall not own or have ownership interest in a non-testing facility licensed pursuant to this division.
(d) For purposes of this section, “volatile solvents” shall have the same meaning as in subdivision (d) of Section 11362.3 of the Health and Safety Code unless otherwise provided by law or regulation.