Del. Code tit. 24, § 3040

No person shall hold himself or herself out to the public as a licensed chemical dependency professional unless the person is licensed in accordance with this chapter. It shall be unlawful for a person who is not licensed under this chapter, or the person’s employees, agents or representatives, to use in connection with the person’s name or business, the words “licensed chemical dependency professional” or any other words, letters, abbreviations or insignia indicating or implying directly or indirectly that the person is licensed under this chapter.