No person shall engage in activities as a field labor contractor unless the person first obtains a certificate of registration from the division and unless such certificate is in full force and effect and in such person's immediate possession.
C.R.S. § 8-4-115
This section is similar to former § 8-4-118 as it existed prior to 2003, and the former § 8-4-115 was relocated to § 8-4-103(6).