The term "voluntary separation" as used in the statute means leaving employment of one's own free will. If you believe you were fired or discriminated against for this reason, contact the DOL at 1-800-662-1220 or visit the DOL website.In the USA, an employer cannot refuse a resignation letter. There are laws against slavery. Some employee resignations are clearcut; the employer is provided with a letter of resignation, with an effective date, a signature etc. Facing workplace issues? Learn how to write an effective constructive dismissal resignation letter. Does an employer need to get written consent and pay a premium to a worker filling in for another worker who called out unexpectedly? (c) I practiced law in New Jersey in the preceding two years. You must fill out the written answer form and then serve the form on the other side.