The British Standards Institute is now launching its promised C compiler validation service. Accredited by NAMAS – the UK National Accreditation body for test laboratories – the service will be available worldwide. Neil Martin, manager of the ANSI X3.159-1989 – currently ISO/IEC DIS 9899 – C standard validation programme at BSI said the new service will ensure that users no longer have to accept unsubstantiated claims of conformance the most outrageous of which must be the vendor that claimed compliance four years before a standard existed! The Institute will use the Plum Hall validation suite for C, which has been harmonised across Europe through co-operative development with IMQ – Instituto Del Marchio Di Qualita, in Italy – and AFNOR the Association Francaise de Normalisation in France – under the aegis of a European Commission contract. All compilers successfully tested before September 1 will be included in a simultaneous first validation announcement that the British Standards Institute plans for later in the year.