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Summary of differences between federal and state regulations
Federal law generally does not regulate employment contracts between employers and employees with one exception: contracts that require the joining or refraining from joining of a labor union as a condition of employment. On the federal level, these contracts are governed by the National Labor Relations Act. States may have a corresponding provision and may also have additional provisions regarding employment contracts.
Indiana law is similar to federal law in relation to union membership. It also contains a provision concerning employment contracts.
Union membership
It is illegal for an employer to enter into a contract with an employee or job applicant requiring the individual to promise not to join or remain a member of a union as a condition of employment, nor to require an employee to quit employment if they subsequently become a member. IC 22-6-1-3
Waiver of rights
An employee can not be required to enter into an agreement to waive his or her rights to unemployment compensation benefits. IC 22-3-2-15
State
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Regulations
Union membership
Indiana Code Article 6, Chapter 1, §22-6-1-3
Waiver of rights
Indiana Code Article 3, Chapter 2, §22-3-2-15