Prohibits labor organizations from collecting payment for union dues from a new employee until such employee has worked at least two hundred fifty hours

HB 2507 requires labor organizations in Missouri to wait until a new employee completes 250 hours of work before collecting union dues. This directly affects new employees who join unions, giving them a 250-hour "grace period" to work before dues are required. The bill mandates that employers provide new hires with a written accounting of all dues owed, including how calculations are made, and requires the employee to sign an acknowledgment of this notice before starting work. The law does not prevent voluntary dues payments during the grace period or apply to existing collective bargaining agreements signed before the bill’s effective date.