Regulation No. 288 regarding activities with sources of ionising radiation for which a special permit (licence) or permit is not required. Pays/Territoire Lettonie Type du document Règlement Date 2001 Source FAO, FAOLEX Sujet Environnement gén. Mot clé Radiation Autorisation/permis Aire géographique Europe, Europe et Asie Centrale, Pays de l'Union Européenne, Europe du Nord Résumé These Regulations determine cases where activities with sources of ionising radiation a special permit (licence) or a permit is not required, because it is not possible to influence such activities by human actions or the potential dose of ionising radiation and the harmful effects of the radiation are so small that from the viewpoint of radiation safety it need not be taken into account. A special permit (licence) or a permit is not required for activities with sources of ionising radiation if in the process of the utilisation of radioactive substances, one of the following conditions shall be observed: 1) the total radioactivity of the relevant radio-nuclide does not exceed the level specified in Annex 1 of these Regulations; 2) the specific radioactivity per unit weight of the relevant radio-nuclide does not exceed the limit value specified in Annex 1 of these Regulations if the total amount of the radioactive substance does not exceed 1 000 kg. In utilising natural radioactive materials, the condition shall be observed that during performance of activities with such materials the total dose of ionising radiation received by employees does not exceed 1 mSv per year. Texte intégral Anglais