Except as otherwise provided in § 54.1-2808.2, a funeral director may dispose of the cremains of an individual by interment, entombment, inurnment, or by scattering of the cremains, if after 120 days from the date of cremation, the contracting agent has not claimed the cremains or instructed the funeral director as to final disposition. The funeral director shall keep a permanent record of all cremains which identifies the method and site of final disposition. The costs and all reasonable expenses incurred in disposing of the cremains shall be borne by the contracting agent. Upon the disposition of the cremains, the funeral director shall not be liable for the cremains or for the method of final disposition. Except as otherwise provided in § 54.1-2808.2, any funeral director in possession of unclaimed cremains prior to July 1, 1993, may dispose of such cremains in accordance with the provisions of this section. However, no funeral director shall, without written permission of the contracting agent, dispose of cremains in a manner or a location in which the cremains of the deceased are commingled, except in the scattering of cremains at sea, by air, or in an area used exclusively for such purpose, or place, temporarily, the cremains of persons in the same container or urn. For the purposes of this section and § 54.1-2808.2, “contracting agent” means any person, organization, association, institution, or group of persons who contracts with a funeral director or funeral establishment for funeral services.