Senate committee substitute makes the following changes to the 1st edition.

Deletes the proposed changes to GS 58-36-105(b) and instead provides as follows. Specifies that notice of intent to cancel a workers' compensation policy given by registered or certified mail is conclusively presumed completed three days after the notice is sent if, on the same day that the notice is sent by registered or certified mail, the insurer also provides notice by first‑class mail and by electronic means if available to the insured and any other person designated in the policy to receive notice. Provides that a supplemental notice given by electronic means is effective for the limited purpose of establishing this conclusive presumption. Requires that the insurer give notice via first class mail to any person to whom the insurer has provided a certificate of insurance, within three business days of cancellation.