MO SB438

Prohibits employers from requiring employees to join or refrain from joining labor organizations as a condition of employment.

Bars employers from requiring employees to pay dues, fees, assessments, or other charges to labor organizations, or to pay equivalent amounts to charities or third parties in lieu of such payments.

Declares agreements between employers and labor organizations that violate these provisions to be unlawful, null, and void.

Establishes criminal penalties of class C misdemeanor for violations and allows injured persons to seek injunctive relief and recover damages including attorney fees.

Exempts employers and employees covered by the federal Railway Labor Act, federal employers and employees, and existing collective bargaining agreements entered into before the effective date, with exemption ending for any renewals or extensions.

Requires voter approval via referendum election on the first Tuesday following the first Monday in November 2012 for the act to become effective.