; or (B) each employer has a principal place of business in the same region that does not exceed the boundaries of a single State or a metropolitan area (even if the metropolitan area includes more than 1 State). (2) Same trade, industry, or line of business In the case of a group or association that is sponsoring a group health plan under this section and that is itself an employer member of the group or association, the group or association shall be deemed for purposes of paragraph (1)(A) to be in the same trade, industry, line of business, or profession, as applicable, as the other employer members of the group or association. (3) Nondiscrimination The standards under paragraph (1) shall not be implemented in a manner that is subterfuge for discrimination as is prohibited under subsection (e). (e) Nondiscrimination (1) In general A group or association of employers sponsoring a group health plan under this section, and any health coverage sponsored by such group or association, shall comply with each of the following: (A) The group or association shall not condition employer membership in the group or association on any health factor of any individual who is or may become eligible to participate in the group health plan sponsored by the group or association. (B) The group health plan sponsored by the group or association shall comply with the rules under section 2590.702(b) of title 29, Code of Federal Regulations (as in effect on June 21, 2018), with respect to nondiscrimination in rules for eligibility for benefits, subject to subparagraph (D). (C) The group health plan sponsored by the group or association shall comply with the rules under section 2590.702(c) of title 29, Code of Federal Regulations (as in effect on June 21, 2018), with respect to nondiscrimination in premiums or contributions required by any participant or beneficiary for coverage under the plan, subject to subparagraph (D). (D) In applying subparagraphs (B) and (C), the group or association may not treat the employees of different