Ariz. Rev. Stat. § 23-906
B. The employee's election to reject the provisions of this chapter shall be made by a notice in writing, signed and dated by him and given to his employer, in duplicate in substantially the following form:
To (name of employer):
You are hereby notified that the undersigned elects to reject the terms, conditions and provisions of the law for the payment of compensation, as provided by the compulsory compensation law of the state of Arizona, and acts amendatory thereto.
D. Every employer engaged in the occupations designated in this chapter shall post and keep posted in a conspicuous place upon his premises, in English and Spanish and available for inspection by all workmen, a notice in substantially the following form:
All employees are hereby notified that in the event they do not specifically reject the provisions of the compulsory compensation law they are deemed by the laws of Arizona to have accepted the provisions of such law, and to have elected to accept compensation under the terms of such law, and that under the terms thereof employees have the right to reject the same by written notice thereof prior to any injury sustained, and that blanks and forms for such notice are available to all employees at the office of this company.