To require curbside delivery of mail at certain housing developments, and for other purposes.

(a) In general. The United States Postal Service—

(1) shall provide curbside delivery of mail to residents of any housing development; and

(2) may not obligate or expend any funds (including amounts within the Postal Service Fund under section 2003 of title 39, United States Code) to cease or otherwise limit curbside delivery at such a development.

(b) Housing development defined. In this section, the term housing development means a cluster of 50 or less single family homes in a subdivision, neighborhood, or other similar grouping of residences, as determined by the Postal Service, that is located within 300 yards of any other residence that receives curbside delivery.