Looks like clear covers are OK in Texas
Texas Department of Public Safety - Inspection/Rejection Criteria
6. All head lamps will be inspected for and rejected if:
n. Lens is other than clear (white).
s. Head lamp is covered by any lens or cover located in front of the head lamp which is any shade or color other than clear.
Of course my headlamps are illegal anyway. I replaced the sealed beams with H4 e-codes.