Treasury Regulations (26 C.F.R.)
26 CFR § 48.4063-3 — Other tax-free sales.
For provisions relating to tax-free sales of articles referred to in section 4061, see:
(a) Section 4221, relating to certain tax-free sales;
(b) Section 4222, relating to registration; and
(c) Section 4223, relating to special rules pertaining to further manufacture;
Source: official text