Maryland Code, Environment § 6-501

(a)(1) A motor vehicle or tire manufacturer, wholesaler, or retailer, motor vehicle repair facility, or any other person who installs wheel weights may not use, allow to be used, or sell an externally attached lead wheel weight that is composed of greater than 0.1% lead by weight or greater than 0.1% mercury by weight during the first tire installation, replacement, or balancing after January 1, 2020, for all new and used vehicles registered in the State.

(2) The State shall ensure that no vehicle purchased for the State fleet after January 1, 2019, is equipped with an externally attached lead wheel weight that is composed of greater than 0.1% lead by weight or greater than 0.1% mercury by weight.

(3) Each tire on a vehicle in the State fleet that is balanced or replaced after January 1, 2018, may not be equipped with a lead wheel weight that is composed of greater than 0.1% lead by weight or greater than 0.1% mercury by weight.

(c)(1) The Department shall send a warning notice to a person that violates this section.

(2) If the person continues to fail to comply with this section 1 year after receipt of the warning notice, the person is subject to a civil fine not exceeding $1,000 for each subsequent offense after the warning period.