DOT Rule 49 CFR Part 40 Section 40.73

(a) The collector must be present and maintain visual contact with the employee during the procedures outlined in this section. 

DOT Rule 49 CFR Part 40 Section 40.71

(a) All collections under DOT agency drug testing regulations must be split specimen collections. 

(b) As the collector, you must take the following steps, in order, after the...

DOT Rule 49 CFR Part 40 Section 40.69 Q&A

§40.67; §40.69                                              ...

DOT Rule 49 CFR Part 40 Section 40.69

(a) As stated in § 40.42(f)(2), if you are conducting a urine collection in a multi-stall restroom and you cannot secure all sources of water and other substances that could be used for adulteration and...

DOT Rule 49 CFR Part 40 Section 40.67, 40.69 Q&A

§40.67; §40.69                                              ...

DOT Rule 49 CFR Part 40 Section 40.67

(a) As an employer, you must direct an immediate collection under direct observation with no advance notice to the employee, if: 

The laboratory reported to the MRO...

DOT Rule 49 CFR Part 40 Section 40.65 Q&A

DOT Rule 49 CFR Part 40 Section 40.65

As a collector, you must check the following when the employee gives the collection container to you:

(a) Sufficiency of specimen. You must check to ensure...

DOT Rule 49 CFR Part 40 Section 40.63

As the collector, you must take the following steps before the employee provides the urine specimen:

(a) Ensure all items under...

DOT Rule 49 CFR Part 40 Section 40.61 Q&A