Colorado Dept. of Public Health & Environment, Emergency Care Requirements

Certificates expire three (3) years from the date of issuance. 6 CCR 1015-3, 5.3.1(D)
 
To renew, EMS providers must complete one of the following: 
   -Hold a current and valid NREMT certification
   -Complete an appropriate level refresher course as described in Section 5.3.3
   -Complete the minimum number of education hours as described in Section 5.3.3 and listed below. 6 CCR 1015-3, 5.3.2 (C)
 
Requirements for EMT-I or Paramedics:
50 hours every three years. 6 CCR 1015-3, 5.3.3(A)(2)
 
Requirements for AEMTs:
36 hours every three years. 6 CCR 1015-3, 5.3.3(A)(1)
 
Requirements for EMTs:
36 hours every three years. 6 CCR 1015-3, 5.3.3(A)(1)