A cannabis agent must be registered with the Administration before the agent may volunteer or work for a cannabis licensee or cannabis registrant. A cannabis agent registration is valid for 2 years. Except as provided in paragraph (2) of this subsection, to register as a cannabis agent with the Administration, an individual must: be at least 21 years old; and if the records are legally accessible, obtain a State and national criminal history records check in accordance with § 36–505 of this subtitle. A cannabis agent who is employed to provide security services for a cannabis licensee or cannabis registrant as a security guard or by a security guard agency, as defined in § 19–101 of the Business Occupations and Professions Article, is not required to obtain a State or national criminal history records check in accordance with § 36–505 of this subtitle if the cannabis agent is authorized to provide security guard services under Title 19, Subtitle 4 of the Business Occupations and Professions Article. The Administration may not register as a cannabis agent an individual who does not meet the criteria established under subsection (c) of this section. The Administration may disqualify an individual from registering as a cannabis agent if the individual has been convicted of or pleaded nolo contendere to a crime involving moral turpitude, whether or not any appeal or other proceeding is pending to have the conviction or plea set aside. The Administration may not deny a cannabis agent registration based on any cannabis–related offenses occurring before July 1, 2023. A cannabis licensee shall require each registered cannabis agent to complete a cannabis agent training program authorized under this title: within 90 days of the cannabis agent’s start date as an employee of or volunteer for the cannabis licensee; and at least once every 2 years. A registration of a cannabis agent issued by the Natalie M. LaPrade Medical Cannabis Commission on or before July 1, 2023, shall: be valid under this title; and authorize the cannabis agent to be employed by or volunteer with a licensed cannabis business.