3. A must—
(a)keep an adequate record of any exempt radioactive substances which A holds, and—
(i)in respect of exempt radioactive substances which are mobile radioactive apparatus, the locations at which they are kept or used;
(ii)in respect of other exempt radioactive substances, the location within the premises where A holds them;
(b)ensure that where practicable exempt radioactive substances or the container of such radioactive substances, is marked or labelled as radioactive;
(c)in respect of exempt radioactive substances which are sealed sources, electrodeposited sources or tritium foil sources, not modify or mutilate those sources or cause a loss of containment such that radioactive material or radioactive waste may be released outside the source;
(d)allow SEPA access to such records or such premises as SEPA may request in order to determine that all of the conditions in respect of the relevant exemption are complied with;
(e)hold the exempt radioactive substances safely and securely to prevent, so far as practicable—
(i)accidental removal, loss or theft from the premises where they are held; or
(ii)loss of containment; and
(f)in respect of exempt radioactive substances in a container—
(i)not modify or mutilate that container; and
(ii)prevent any uncontrolled or unintended release of radioactive material or radioactive waste from the container.