1. A. A report, document, instrument, videotape, audiotape, or other matter required to be filed with the Commission under A.R.S. § 23-901 et seq. and this Article shall be filed within the time required by law and this Article.

2. B. For purposes of computing time under this Article, the following applies:

   1. 1. The Commission shall not include in the computation of time the day of the act or event from which the designated period begins to run.
   2. 2. The Commission shall include in the computation of time the last day of the designated period, unless the last day is a Saturday, Sunday, or state legal holiday, in which event the period runs until the end of the next business day.
   3. 3. If the period of time prescribed is less than 11 days, the Commission shall not include intermediate Saturdays, Sundays, or state legal holidays in the computation of time.
3. C. The Commission shall deem a report, document, instrument, videotape, audiotape, or other matter filed at the Tucson office as filed at the principal office for purposes of computing time.
4. D. An award, notice, document, or other matter required by the Act, this Article, or other law to be served from the Commission shall be made upon a party or, if represented, the party’s authorized representative. Service upon the authorized representative is service upon the party.

5. E. Service may be made and is deemed complete by:

   1. 1. Depositing the document or matter in the United States mail, with postage prepaid, addressed to the party served at the address as shown by the records of the Commission;
   2. 2. Personal service in the same manner as a summons is served in a civil action; or
   3. 3. Through the chosen method of service in the Commission “ICA Community.”
6. F. If “three consecutive mailings” are returned as non-deliverable it is sufficient evidence of nonconformity with R20-5-104 and considered an abandonment of the claim.

Historical Note

Former Rule 5. Amended effective March 1, 1987, filed February 26, 1987 (Supp. 87-1). R20-5-105 recodified from R4-13-105 (Supp. 95-1). Section repealed; new Section made by final rulemaking at 7 A.A.R. 3966 and 7 A.A.R. 4995, effective August 17, 2001 (Supp. 01-3). Amended by final rulemaking at 31 A.A.R. 4199 (October 31, 2025), effective December 6, 2025 (Supp. 25-4).