Texas Labor Code - LAB § 409.002. Failure to File Notice of Injury

(1) the employer, a person eligible to receive notice under Section 409.001(b), or the employer's insurance carrier has actual knowledge of the employee's injury;

(2) the division determines that good cause exists for failure to provide notice in a timely manner;  or

(3) the employer or the employer's insurance carrier does not contest the claim.