NJ PIP 21-Day Notice: Commencement of Treatment Form

New Jersey's 21-day notice rule (N.J.A.C. 11:3-25) requires a treating health care provider to tell the patient's PIP insurer, within 21 days, that treatment has begun for injuries from an auto accident. Appendix A is the one-page notification the rule prescribes. Within 14 days of receiving it, the insurer must tell the provider the patient's coverage status.

Who completes it

The treating health care provider completes the whole form: provider name and contact details, the patient's and insured's names and addresses, the insurer, policy number, date of accident and date of first treatment. That information may come from the insured, the injured person, the hospital or a police report.

Submitting and payment

How to submit it
Send it by mail, or by fax or email where the insurer allows, to the notice address the insurer prints on its ID cards or files with DOBI, no later than 21 days after treatment begins. Keep the postmark or transmission receipt as proof.
Who pays
Late notice lets the insurer reduce eligible charges from 10% (22 to 30 days) up to 100% (161 days or more), and the provider may not bill the patient for the reduced amount.

Good to know

  • A first bill can serve as notice if its first page shows 21 DAY NOTICE or FIRST BILL 21 DAY NOTICE in contrasting ink and 12-point capitals; a stamp or label is acceptable.
  • No reduction applies to emergency care during the initial hospitalization, to secondary providers filling a prescription, when the patient's condition made notice impossible, or after a decision point review or precertification request.
  • Day counting excludes the day treatment begins; if the last day falls on a weekend or legal holiday, the deadline moves to the next business day.
  • A provider whose claim was reduced for late notice may ask a Superior Court judge for leave to refile within 14 days of the insurer's final determination.

Get the official form

Download the current version from the source each time; forms change without notice.

Notification of Commencement of Medical Treatment

Fill it with Vero

If your copy of the form is a fillable PDF, upload it once and Vero Documents fills it from the visit note and the chart, ready for you to review and sign. Download, print, or email the finished form, with the patient’s consent.

How this list is checked

A form is listed only after its name and number were confirmed on the issuing agency’s or insurer’s own website, or in the form itself. Each entry links to that source. The list was last checked in October 2026. Forms and their requirements change without notice, so check the official page for the current version before you complete one.

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Frequently asked questions

What happens if the New Jersey 21-day notice is late?

The insurer must tell the provider in writing and may reduce eligible charges: 10% at 22 to 30 days, 25% at 31 to 60, 50% at 61 to 120, 75% at 121 to 160 and 100% at 161 days or more. Insurers may reduce less after weighing factors such as a pattern of late notice, and the provider may not bill the patient for the cut.

Can a bill replace the 21-day notification form?

Yes. N.J.A.C. 11:3-25.4 lets a bill or invoice that contains at least the Appendix A information serve as notice, but only if its first page carries 21 DAY NOTICE or FIRST BILL 21 DAY NOTICE in contrasting color ink, in 12-point or larger capital letters. A rubber stamp or affixed label is acceptable.

Do pharmacies and DME suppliers have to file the 21-day notice?

Secondary medical providers, who supply products or services only on another provider's prescription, such as pharmacists, visiting nurses, prosthetics fabricators and DME suppliers, are exempt. The exemption does not cover physical therapists, chiropractors, or secondary providers whose charges exceed the rule's threshold for one occasion or a 30-day period.