When the sale or transportation of any product for which registration of a trademark is sought is regulated under an Act of Congress, the Patent and Trademark Office may make appropriate inquiry as to compliance with such Act for the sole purpose of determining lawfulness of the commerce recited in the application.
[54 FR 37592, Sept. 11, 1989]
source: 30 FR 13193, Oct. 16, 1965, unless otherwise noted.
cite as: 37 CFR 2.69