A sample union resignation letter is provided below.

[LETTER TO UNION:
SEND BY CERTIFIED MAIL,
RETURN RECEIPT REQUESTED]

[your address]

[date]

[name and address of union]

[To the appropriate union officer (See your union constitution. For the
Teamsters, for example, the letter must be addressed to the Secretary-Treasurer)]:

I hereby resign as a member of [name of union]. My resignation is effective
immediately. I will continue to
meet my lawful obligation of paying a representation fee to the union under
its "union shop" or "agency shop" agreement with [name
of employer].

Furthermore, I object to the collection and expenditure by the union of a
fee for any purpose other than my pro rata share of the union’s costs of collective
bargaining, contract administration, and grievance adjustment, as is my right
under Communications
Workers v. Beck, 487 U.S. 735 (1988). Pursuant to Teachers
Local 1 v. Hudson, 475 U.S. 292 (1986), and Abrams
v. Communications Workers, 59 F.3d 1373 (D.C. Cir. 1995), I request
that you provide me with my procedural rights, including: reduction of my
fees to an amount that includes only lawfully chargeable costs; notice of
the calculation of that amount, verified by an independent certified public
accountant; and notice of the procedure that you have adopted to hold my fees
in an interest-bearing escrow account and give me an opportunity to challenge
your calculation and have it reviewed by an impartial decisionmaker.

[If you pay dues by payroll deduction, include this paragraph: Accordingly,
I also hereby notify you that I wish to authorize only the deduction of representation fees from my wages. If I am required
to sign a new deduction authorization form to make that change, please provide me with
the necessary form.]

Please reply promptly to my request. Any further collection or expenditure
of dues or fees from me made without the procedural safeguards required by
law will violate my rights under the National
Labor Relations Act and/or U.S. Constitution.

Finally, please consider this objection to be permanent and continuing in nature.

Sincerely yours,

[name]

[If you include the paragraph on the change in your payroll deduction
authorization, you should also send a copy of this letter to the payroll
department of your employer.]

*Religious Objectors should not use this letter to resign their union membership.*