The Commissioner shall prepare in clear, plain English the text of a Medicare supplement buyer’s guide that carriers must provide to prospective buyers of Medicare supplement policies under this section. The buyer’s guide shall: contain an outline of Medicare coverage; and include advice and other information about purchasing Medicare supplement policies, including a reference to the right of the buyer to cancel a Medicare supplement policy during the first 30 days after it is delivered, as provided in § 15-910 of this subtitle. The Commissioner shall submit the text of the buyer’s guide for publication in the Maryland Register and at the same time send a copy of the text to the Department of Aging. The carrier or insurance producer of the carrier shall deliver to the prospective buyer a Medicare supplement buyer’s guide that is printed in at least 12-point type: before accepting an application; when an existing policy is converted to a Medicare supplement policy; and at any other time required by the Commissioner by regulation. A carrier shall provide: a copy of the Medicare supplement buyer’s guide to an individual covered under a group health insurance policy when the individual becomes eligible for Medicare by reason of age; and any information required under § 15-919 of this subtitle that is applicable to the continuing coverage under the group health insurance policy of the individual eligible for Medicare. The text of the Medicare supplement buyer’s guide shall be as the Commissioner submits for publication under subsection (c) of this section. The form of the Medicare supplement buyer’s guide shall be as required by the Commissioner by regulation.