In short
Act 3 of March 8, 1988 declares null any stipulation in a fixed-term or specific-work employment contract by which the worker or employee authorizes the employer to dismiss them at any time before the contract is fulfilled, without just cause, or by which that worker or employee agrees to waive any right, benefit or additional compensation that may correspond to them under the laws of Puerto Rico by reason of such termination. It is a law with a single substantive provision and its effect is direct: the clause has no value, even if you signed it. The law does not itself set what you are owed; what it does is prevent you from waiving in advance whatever the laws of Puerto Rico give you for that termination.
What is it?
It is the law that strips value from two clauses that appear often in fixed-term employment contracts and in specific-work contracts: the one saying the employer may end the contract early and without cause, and the one saying the employee waives the compensation owed for that termination. The law declares them null, that is, without legal effect, even if signed.
Who can do it?
Any worker or employee in Puerto Rico whose employment contract is for a fixed term or to carry out specific work, and whose contract contains one of the two clauses the law voids.
Requirements
- That the employment contract be for a fixed term or to carry out specific work.Verified against the official source
- That the clause authorize the employer to dismiss without just cause before the contract is fulfilled, or make the employee waive rights, benefits or additional compensation by reason of the termination.Verified against the official source
Documents you need
Information pending verification.
Cost
Step by step
Step 1: Read the contract looking for those two clauses
They are the two the law names. One lets the employer dismiss you at any time before the contract is fulfilled without just cause. The other makes you agree to waive any right, benefit or additional compensation that may correspond to you under the laws of Puerto Rico by reason of such termination. The wording varies; what matters is the effect.
Step 2: Having signed it does not validate it
The law says “is declared null.” It does not say the clause is voidable if you challenge it in time, nor that it depends on your having protested when signing. An employer who answers you by pointing at your signature is answering something the law already settled.
Step 3: The law protects what other laws give you; it does not invent an amount
Read it carefully: what you cannot waive is “any right, benefit or additional compensation that may correspond to them under the laws of Puerto Rico.” Act 3-1988 does not itself set the amount. What you are owed for a dismissal depends on the laws that apply to your case, starting with the severance pay, which we cover in its own guide.
Step 4: Where to take it
The Department of Labor and Human Resources receives labor standards claims, and that is the route we cover in the labor standards claim guide. If what you have is a dismissal and a dispute over compensation, a court claim for unjust dismissal is the other path. This law creates no procedure of its own and no enforcing agency: it creates the nullity, which is what you carry into either route.
Where to do it
There is no Act 3-1988 office. The nullity is invoked wherever the dismissal is disputed: in a labor standards claim before the Department of Labor and Human Resources, or in a court claim for dismissal. Keep a copy of the contract with the clause.
How long it takes
What to do if something goes wrong
The limits of this law, said precisely. First: the law declares the stipulation null, and says nothing about the rest of the contract — we did not read case law and we do not claim the whole contract falls, or survives. Second: the law does not define “just cause”; that definition lives in other labor statutes. Third: the law sets no amounts. Fourth: what the law covers are fixed-term contracts and contracts to carry out specific work; it says nothing about indefinite employment, governed by other rules. And we did not read Act 80-1976 in full for this guide, nor any court decision, so we publish no calculations or judicial interpretations.
Common mistakes
- Believing that having signed ends the claim: the law declares the clause null, not voidable on request.
- Confusing the nullity with an amount: the law protects what other laws give you, it sets no sum.
- Thinking it applies to any employment contract: the law speaks of fixed-term and specific-work contracts.
- Accepting that a “private” contract outranks the statute: the law voids the stipulation precisely because it is in the contract.
- Throwing out the contract when dismissed: it is the document that proves the clause.
- Expecting an agency to enforce this law on its own: it designates none; the nullity is invoked in the claim.
Frequently asked questions
Is the clause valid if I signed it voluntarily?
The law declares the stipulation null, without conditioning it on how it was signed. The text is direct: any stipulation is declared null by which the worker or employee authorizes the employer to dismiss them without just cause before the contract is fulfilled, or agrees to waive rights, benefits or additional compensation by reason of such termination.
How much am I owed then if I am dismissed early?
Act 3-1988 does not say. What it does is protect from advance waiver “any right, benefit or additional compensation that may correspond to them under the laws of Puerto Rico.” The amount comes from those other laws, not from this one.
Does it apply to a project or specific-work contract?
Yes. The text expressly covers the employment contract “for a fixed term or to carry out specific work.”
Which agency enforces this law?
The law designates none. It consists of the nullity declaration and its effective-date clause. The nullity is asserted in whatever claim disputes the dismissal.
Official sources
These are the government pages this guide is based on.
- Departamento del Trabajo y Recursos Humanos (DTRH)
Departamento del Trabajo
bvirtualogp.pr.gov
- Department of Labor and Human Resources
DTRH
www.trabajo.pr.gov
Last verified
August 24, 2026
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