In any case in which, in any plan year following a partial withdrawal under section 1385(a)(1) of this title, the number of contribution base units with respect to which the employer has an obligation to contribute for such year equals or exceeds 110 percent (or such other percentage as the plan may provide by amendment and which is not prohibited under regulations prescribed by the corporation) of the number of contribution base units with respect to which the employer had an obligation to contribute in the partial withdrawal year, then the amount of the employer’s partial withdrawal liability payment for such year shall be reduced pro rata, in accordance with regulations prescribed by the corporation.
29 U.S. Code § 1388. Reduction of partial withdrawal liability
“Section 1383(b) of this title” and “section 1383(c) of this title”, referred to in subsec. (d), were in the original “section 4202(b)” and “section 4202(c)”, respectively, meaning section 4202(b) and section 4202(c) of the Employee Retirement Income Security Act of 1974 and were editorially translated as the probable intent of Congress in view of section 4202 of the Employee Retirement Income Security Act of 1974, which is classified to section 1382 of this title, not having subsection designations and the subject matter of section 4203 of the Act which is classified to section 1383 of this title.
This chapter, referred to in subsec. (e)(1), (3), was in the original “this Act”, meaning Pub. L. 93–406, known as the Employee Retirement Income Security Act of 1974. Titles I, III, and IV of such Act are classified principally to this chapter. For complete classification of this Act to the Code, see Short Title note set out under section 1001 of this title and Tables.
 So in original. Probably should be “title),”.
 See References in Text note below.