Colorado Revised Statutes Title 12. Professions and Occupations § 12-120-203. Exemptions

(a) Individuals who normally operate and maintain machinery or equipment;

(b) Individuals who perform engineering services for themselves;

(c) Partnerships, professional associations, joint stock companies, limited liability companies, or corporations, or the employees of any such organizations, who perform engineering services for themselves or their affiliates;

(d) Individuals who perform engineering services under the responsible charge of a professional engineer;

(e) Work of a strictly agricultural nature that is not required to be of public record;

(f) Professional land surveying as defined in section 12-120-302(5);

(g) Individuals who are employed by and perform engineering services solely for a county, city and county, or municipality;

(h) Individuals who are employed by and perform engineering services solely for the federal government;

(i) Individuals who practice architecture as defined in section 12-120-402(5);

(j) Utilities or their employees or contractors when performing services for another utility during times of natural disasters or emergency situations; or

(k) Individuals who practice landscape architecture as defined in section 12-130-104(6).