- 24 - B. The Commissioner’s Oscillating Position Is Entitled to Less Deference At the outset, we are wary of the Commissioner’s position because of the oscillations in his interpretation of the bond requirement demonstrated by his published guidance over the years. Although the published guidance discussed earlier cannot be cited as precedent under section 6110(k)(3), it highlights the Commissioner’s confusion about the proper interpretation of the bond requirement. The Commissioner’s current interpretation, being in conflict with his initial position (and his penultimate position), is entitled to considerably less deference. Watt v. Alaska, 451 U.S. 259, 273 (1981) (citing Gen. Elec. Co. v. Gilbert, 429 U.S. 125, 143 (1976)). C. The Plain Language of Sections 6166 and 6165 Imposes a Discretion That Respondent Failed To Exercise The statutory scheme of sections 6166 and 6165 reveals that the bond requirement is discretionary and was not intended to be mandatory. The substantive requirements of section 6166 are confined to section 6166(a) and (g). None of these requirements include securing a bond or a special lien under section 6324A. Rather than making security a substantive requirement, Congress incorporated the Commissioner’s discretionary authority under section 6165, which provides that the Secretary may require a bond. Thus, section 6165 gives the Commissioner discretion to require a bond for extension of time to pay tax, but it does notPage: Previous 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 NextLast modified: November 10, 2007