(iii) Ability to separate related types of property or services into two or more lines of business. For purposes of this paragraph (b)(3), there is no requirement that all property or services of related types or the same type be provided by a single line of business. Thus, the employer is permitted to designate two or more lines of business that provide related types of property or services, or the same type of property or service. An employer might designate two or more lines of business that provide property or services of related types or the same type, for example, where the lines of business manufacture, prepare, or provide the property or services in different geographic areas (e.g., in different regions of the country or the world), or at different levels in the chain of commercial distribution (e.g., wholesale versus retail), or in different types of transactions (e.g, sale versus lease), or for different types of customers (e. g., governmental versus private), or subject to different legal constraints (e. g., regulated versus unregulated), or if the lines of business have developed differently (e.g., one line of business was acquired while another line of business developed internally). Notwithstanding the foregoing, an employer is not permitted to designate two or more lines of business that provide property or services of related types or the same type, if the employer's designation is unreasonable. An employer's designation would be unreasonable, for example, if the designation separated two types of property or services in different lines of business, but the employer did not provide those types of property or services separately from one another to its customers. Similarly, an employer's designation would be unreasonable if it separated two types of property or services in different lines of business, but the provision of one type of property or service was merely ancillary or incidental to, or regularly associated with, the provision of the other type of property or service. See generally
§ 1.414(r)-1(d)(2) (requiring an employer's operation of qualified separate lines of business to be for bona fide business reasons).