Definition of MERC in the Definitions.net dictionary. Meaning of MERC. What does MERC mean? Information and translations of MERC in the most comprehensive dictionary definitions resource on the web.
30-Day Permit. TxDMV issues a 30-Day Permit for the temporary movement of a vehicle subject to Texas registration laws. A 30-Day Permit is valid for a period of 30 days from the effective date reflected on the permit. No more than three 30-Day Permits will be issued per vehicle.
Recommended interval: 6 months or 6,000 miles. The Interim Service is designed for the high mileage car user, or vehicles which require frequent checks. We test all the main moving parts that may need attention over a short period of time. The interim service should be performed at 6 month intervals between annual services.