The provisions in the Regulations herein shall apply to a dual-status business entity that is subject to business tax pursuant to Section 1, Chapter IV of the Act. 
The term "dual-status business entity" in the preceding paragraph means that a business entity supplies both taxable or exempt goods or services and computes its business tax according to the provisions in Section 1, Chapter IV of the Act, or a business entity computes its business tax both according to Section 1 and Section 2, Chapter IV of the Act.