To amend title 28, United States Code, to provide for a 3-judge court to hear and determine any application for an injunction against the enforcement of a State or Federal law on the ground of unconstitutionality, and for other purposes.

[AI summary unavailable — showing source text] Amends the Federal judicial code to prohibit any district court from granting an injunction restraining the enforcement, operation, or execution of any State statute or Act of Congress upon the ground of unconstitutionality unless the injunction application is heard and determined by a three-judge court. Excepts such proceedings from provisions authorizing direct appeals to the Supreme Court from decisions of three-judge courts.…