Where an employer advances compensation in accordance with Texas Civil Statutes, Article 8309, §4b, it is necessary that IAB Form EAC-70 be completed and forwarded by the employer within 10 days to the board in Austin, and such form shall also be furnished within 10 days to the employee and the insurance carrier advising the date first payment was made (Rev.1979).
28 Tex. Admin. Code § 47.15