Distinct and separate business defined by absence of interlacing and statutory tests including physical separation, different processes, or separate books.

A business is distinct and separate when there is no interlacing, inter-dependence or unity between operations. A business is deemed distinct if a unit producing the same goods is physically apart, if it uses different raw materials or processes, if separate books of account are maintained or can be maintained, or if profits are determined under the specified profit-determination rule; speculative transactions are expressly deemed distinct from other businesses.

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