HSE has issued three type approval certificates - for (i) the installation and bulk storage of ionisation chamber smoke detectors and (ii) for the installation of gaseous tritium light devices (including fire exit signs). The purpose of the certificates is to relieve employers of the obligation to notify HSE where these devices are installed and no other work with ionising radiations is carried out.
The updated certificates are necessary as the existing certificates of approval, issued under the Ionising Radiations Regulations 1985 (IRR85), expired on 31 December 1999. The new certificates are issued under the Ionising Radiations Regulations 1999 (IRR99).
The updated certificates do not introduce any major changes to the previous certificates. Those devices that conformed to the previous certificates, issued in 1990, will comply with the 1999 certificates. Employers should check that their devices continue to conform to the conditions in the updated certificates and should notify their nearest HSE office if the devices cannot be shown to satisfy these conditions. In most cases employers will need to do no more than check that they are complying with the conditions in the general certificates of authorisation certificates. Employers will only need to apply to HSE for individual authorisation where these conditions cannot be met. Type approval is not automatuic for any apparatus that does not cause a dose rate of more than 1 microsievert per hour under normal operating conditions (see paragraph 1(c)(iii) under Schedule 1 of IRR99.