Sequential examinations
- Colorado requires operators to pass exams sequentially to advance to higher levels.
- For treatment certificates, operators must progress in order from class "D" to "C" to "B" to "A."
- For example, operators cannot skip from "C" to "A."
- For collection and distribution certificates, operators must progress in order from class "1" to "2" to "3" to "4."
- For example, operators cannot skip from "1" to "3."
- For treatment certificates, operators must progress in order from class "D" to "C" to "B" to "A."
Requirements for eligibility to sit for advanced examinations
|
Certification Class
|
Prior Certification Required1
|
Minimum Experience Required
|
|
Class C
|
Class D or Class S
|
2 Years
|
|
Class 2
|
Class 1 or Class S
|
2 Years
|
|
Class B
|
Class C
|
3 Years
|
|
Class 3
|
Class 2
|
3 Years
|
|
Class A
|
Class B
|
4 Years
|
|
Class 4
|
Class 3
|
4 Years
|
1Prior certification must be for the same certification category as that of the examination being applied for.
Board Guidance 15-2, Colorado Operator Certification Examination Guidance, includes examples to help operators understand how experience is calculated.
Substitutions
- Regulation 100 explains how post secondary education and cross experience may be substituted for the experience requirements.