California Code of Regulations
Title 10 - Investment
Chapter 5 - Insurance Commissioner
Subchapter 2 - Policy Forms and Other Documents
Article 2a - Group Disability Policies
Subarticle 2 - Compulsory Uniform Provisions
Section 2232.22 - Claims Forms

The insurer, upon receipt of a written notice of claim, will furnish to the claimant such forms as are usually furnished by it for filing proofs of loss. If such forms are not furnished within 15 days after the giving of such notice the claimant shall be deemed to have complied with the requirements of this policy as to proof of loss upon submitting, within the time fixed in the policy for filing proofs of loss, written proof covering the occurrence, the character and the extent of the loss for which claim is made. (Ins. C. 10350.6.)