The present Act implements article 47c of the Federal Immission Control Act. It deals with measurement of noise to be carried out in particularly congested urban areas. The text consists of 8 articles as follows: Sphere of application (1); Noise indexes (2); Data collection and data transmission (3); Preparation of noise cards; Method of calculation (4); Transmission of noise cards (6); Public access to noise information cards (7); Entry into force (8).