# § 3405. Nonapplicability
**(a)** If, on the date of enactment of this chapter, there is in effect with respect to positions within an agency a collective-bargaining agreement which establishes the number of hours of employment a week, then this chapter shall not apply to those positions.
**(b)** This chapter shall not require part-time career employment in positions the rate of basic pay for which is fixed at a rate equal to or greater than the minimum rate payable under section 5376.
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**Source Credit**: (Added Pub. L. 95–437, § 3(a), Oct. 10, 1978, 92 Stat. 1057, § 3395; renumbered § 3405 and amended Pub. L. 95–454, title IX, § 906(c)(1)(B), (2)(C), Oct. 13, 1978, 92 Stat. 1226, 1227; Pub. L. 101–509, title V, § 529 [title I, § 101(b)(9)(D)], Nov. 5, 1990, 104 Stat. 1427, 1441.)
## Editorial Notes
### References in Text
The date of enactment of this chapter, referred to in subsec. (a), is the date of the enactment of , which was approved .
### Amendments
1990—Subsec. (b). substituted “payable under section 5376” for “fixed for GS–16 of the General Schedule”.
1978—, renumbered as this section.
Subsecs. (a), (b). , substituted “chapter” for “subchapter” wherever appearing.
## Statutory Notes and Related Subsidiaries
### Effective Date of 1990 Amendment
Amendment by effective on such date as the President shall determine, but not earlier than 90 days, and not later than 180 days, after , see section 529 [title III, § 305] of , set out as a note under .
### Effective Date of 1978 Amendment
Amendment by effective 90 days after , see , set out as a note under .