YES OF COURSE!dBud’s noise-reduction is certified with EPA and CE marking, tested and verified according to both the U.S. standard ANSI S3.19-1974 and the EU standard EN 352-2:2002.Two independent and accredited acoustic labs have tested and verified dBud’s performance.In the US, dBud has been tested and verified by Michael & Associates Inc.– An acoustic laboratory accredited by NIST – National Institute of Standards and Technology.– Recommended by EPA – Environmental Protection Agency, the authority of enforcing the regulation about noise labelling in the US.Test lab ID: NVAP LAB 100427-0Michael & Associates Inc.2766 W. College Ave Suite 1State College, PA 16801 USAIn Europe, test results from any acoustic lab must pass a conformity assessment by a Notified Body, accredited by the European Commission. Only then can the earplug be legally CE marked.dBud has been verified by a Notified Body during the entire process from beginning to end –  from the tests to the conformity assessment.Test Lab ID: Notified body nr. 1437Central Institute for Labour Protection, National Research Institute (CIOP-PIB)Czerniakowska 16, 00-701 Warsaw Poland