redesignating subsection (l) as subsection (m) and by inserting after subsection (k) the following new subsection: (l) Limitation on levy after expiration of collection period (1) Penalties and interest In the case of a levy that attaches to a fixed and determinable right to payments or other property, penalties, additions to tax, and interest shall not accrue after the expiration of the period of limitations provided in section 6502. (2) Retirement and disability payments In the case of a levy on benefits under title II of the Social Security Act, benefits under a plan on account of a disability, or retirement benefits or amounts held in a retirement plan, such levy is not enforceable with respect to such benefits or amounts after the expiration of the period of limitations provided in section 6502 unless the taxpayer has committed a flagrant act (as defined in section 6334(f)(2)). . (b) Effective date The amendments made by this section shall apply to levies served after the date of the enactment of this Act.