Cal. Code Regs. tit. 17, § 1186
The methods of analysis used by a laboratory shall be able to detect the following drugs, and at least at the following concentrations, in urine:
Methadone
2 micrograms per milliliter
Primary Metabolite of Methadone
1 microgram per milliliter
Morphine (total of free and conjugated)
1 microgram per milliliter
Codeine
1 microgram per milliliter
Amphetamine
2 micrograms per milliliter
Methamphetamine
5 micrograms per milliliter
Phenobarbital
1 microgram per milliliter
Pentobarbital
1 microgram per milliliter
Secobarbital
1 microgram per milliliter
Note: Authority cited: Sections 208, 11881 and 11885, Health and Safety Code. Reference: Section 11885, Health and Safety Code.
1. Editorial correction of Note filed 11-6-84 (Register 84, No. 45).