Your rights
The Fair Debt Collection Practices Act governs what debt collectors may say and do. These are the protections you will use most, with the statutes behind them.
Every state has its own page with its limitations period and citation: all states.
This page summarizes federal and state law for general information. It is not legal advice, and it may not reflect recent amendments or how courts in your jurisdiction apply these statutes. For advice about your specific situation, consult a licensed attorney.