Interesting links to other websites on the subject of machine safety are listed here.
CSA Search Engine for qualified products
CSA International is accredited by the U.S. Occupational Safety and Health Administration (OSHA) and is a Nationally Recognised Testing Laboratory (NRTL). This means that CSA is fully qualified to test and certify the products you are exporting to the U.S.A
In the CSA Search Engine you'll find all qualified Schmersal products.
UL has developed more than 800 Standards for Safety. The Standards for Safety are essential to helping insure public safety and confidence, reduce costs, improve quality and market products and services.
The association is active in the field of industrial low-voltage appliances. It supports the declaration of conformity of the manufacturers and produces by establishing working groups Test Report Form for EN- and IEC- Product standards being harmonized within Europe. ALPHA is accredited by the German Accreditation Body Technology (DATech e.V.) and certifies on the basis of test results in accredited testing laboratories. ALPHA is a member of LOVAG, the Low Voltage Agreement Group for the mutual recognition of LOVAG Test reports and LOVAG Certificates within the EU and world wide.