C.R.S. § 22-61-103: Teacher's oath, affirmation, or pledge.

(1) A person now holding a license to teach in the public schools in the state of Colorado or who shall hereafter be issued a license to teach in such public schools within the state of Colorado, except a person employed to teach in a temporary capacity who is a citizen of a nation other than the United States, shall take or sign the following oath, affirmation, or written pledge:

I solemnly (swear) (affirm) (pledge) that I will uphold the constitution of the United States and the constitution of the state of Colorado, and I will faithfully perform the duties of the position upon which I am about to enter.

(2) A person authorized to administer oaths in the state of Colorado shall administer the oath or affirmation, or the teacher must sign the pledge.