City of Baltimore
Baltimore City Code

§ 3-1. Employee rights.

Employees shall have, and shall be protected in the exercise of, the right of self-organization, to form, join, assist, or participate in any employee organization, or to refrain from forming, joining, assisting, or participating in any employee organization, freely and without fear of penalty or reprisal, to negotiate collectively through representatives of their own choosing on terms and conditions of employment subject to the limitations herein stated and the administration of grievances arising thereunder, subject to the applicable provisions of any law, ordinance, or charter provisions relating thereto.