29 CFR § 779.211 - Status of activities which are not “related.”
Activities which are not related even if performed by the same employer are not included as a part of the enterprise. The receipts from the unrelated activities will not be counted toward the annual dollar volume of sales or business under section 3(s) and the employees performing such unrelated activities will not be covered merely because they work for the same employer. Common ownership standing alone does not bring unrelated activities within the scope of the same enterprise. If, for example, one individual owns or controls a bank, a filing station, and a factory, the mere fact of common ownership will not make them one enterprise. However, if it appears that there is a reasonable relationship of all the activities to a single business purpose a different conclusion might be warranted. Activities which are not “related” will be treated separately for purposes of the tests contained in section 3(s)(1) through (5) of the prior Act and section 3(s)(1) through (4) of the amended Act. For example, in the case where a single company operates retail grocery stores and also engages in an unrelated business of constructing homes, one “enterprise” for purposes of section 3(s)(1) of both the prior and the amended Act will consist of the retail grocery stores and any activities related to them, and home construction activities will constitute a separate enterprise. The latter will not be included in determining whether the retail business enterprise meets the conditions of section 3(s)(1), and the construction employees will not be covered merely because the retail business is covered. The construction business will be considered separately under section 3(s)(4) of the poor Act and section 3(s)(3) of the amended Act.