Effective/applicability dateEffective/applicability date

Effective/applicability date—(1) In general. The provision of paragraph (b) of this section is generally applicable for taxable years beginning after December 31, 2006. The provision of paragraph (e) of this section is generally applicable on January 5, 2009.

Election to apply paragraph (b) to earlier taxable years. A person may elect to apply the provisions of paragraph (b) of this section to earlier taxable years in accordance with the rules set forth in § 1.482-9(n)(2).