Cal. Code Regs. Tit. 17, § 1220.4 - Expression of Analytical Results

(a) All analytical results shall be in terms of the alcohol concentration in blood, based on the number of grams of alcohol per 100 milliliters of blood with the exception of tissue analysis and breath test results.

(1) The symbols, grams %, %, and % (W/V), shall be regarded as acceptable abbreviations of the phrase, grams per 100 milliliters of blood.

(b) Analytical results shall be reported to the second or third decimal place. When reporting to the second decimal place, the digit in the third decimal place shall be deleted.

(c) Alcohol concentrations less than 0.010% in living subjects may be reported as negative.

(d) Alcohol concentrations less than 0.020% on post-mortem samples may be reported as negative.

(e) A urine alcohol concentration shall be converted and expressed as a blood alcohol concentration. The converted blood alcohol concentration shall be determined by dividing the urine alcohol concentration by 1.3.

(f) A breath alcohol concentration shall be expressed as the number of grams of alcohol per 210 liters of breath.

(g) Analytical results for tissue analysis shall be expressed in terms of a weight amount of alcohol in a unit weight of the specimen.

Notes

Cal. Code Regs. Tit. 17, § 1220.4

1. Amendment filed 11-24-75; effective thirtieth day thereafter (Register 75, No. 48).
2. Editorial correction (Register 76, No. 24).
3. Amendment of section and new NOTE filed 1-26-2017; operative 4-1-2017 (Register 2017, No. 4).

Note: Authority cited: Section 100703, Health and Safety Code. Reference: Section 100700, Health and Safety Code.

1. Amendment filed 11-24-75; effective thirtieth day thereafter (Register 75, No. 48).
2. Editorial correction (Register 76, No. 24).
3. Amendment of section and new Note filed 1-26-2017; operative 4/1/2017 (Register 2017, No. 4).