The Brief New laws in Maryland went into effect on January 1, 2025. Notable new laws include hearing aid coverage for adults, security guard licensing and Maryland road worker protection. The new year brought new laws to the state of Maryland. Beginning on January 1, 2025, many new laws went into effect. Section 1 only Contingency – Subject to the ratification of an amendment to the Charter of Baltimore City at the 2024 general election. READ MORE:New 2025 DC laws now in effectNew 2025 Maryland laws now in effectNew 2025 Virginia laws now in effect