Unexploded explosive ordnance (UXO) and munitions diving
This Standard applies to occupational diving operations conducted in connection with unexploded
explosive ordnance (UXO) and specifies minimum competency level requirements for all personnel
directly associated with the techniques of UXO diving identified in this Standard and additional
requirements for occupational safety during UXO diving operations.
1.2 UXO diving competencies
This Standard specifies competency requirements for
(a) occupational (open-circuit) self-contained underwater breathing apparatus (SCUBA) diving; and
(b) surface-supplied diving, as follows:
(i) restricted, surface-supplied;
(ii) unrestricted, surface-supplied; and
(iii) mixed gas.
This Standard specifies competency requirements for the following personnel associated with the diving
techniques specified in Clause 1.2.1 as they relate to UXO diving:
(a) UXO SCUBA diver (see Clause 5);
(b) UXO SCUBA tender (see Clause 6);
(c) UXO SCUBA supervisor (see Clause 7);
(d) UXO restricted surface-supplied diver (see Clause 8);
(e) UXO surface-supplied tender (see Clause 9);
(f) UXO restricted surface-supplied supervisor (see Clause 10);
(g) UXO unrestricted surface-supplied diver (see Clause 11);
(h) UXO unrestricted surface-supplied supervisor (see Clause 12);
(i) UXO surface-supplied mixed-gas diver (see Clause 13);
(j) UXO surface-supplied mixed-gas tender (see Clause 14); and
(k) UXO surface-supplied mixed-gas supervisor (see Clause 15).
Note: These categories of occupational diving personnel correspond with the categories of occupational diving personnel
specified in CAN/CSA-Z275.4, but with the addition of the prefix “UXO” to identify the additional endorsement of UXO
diving competency as specified in this Standard.
1.3 Dual dimensions
The values given in SI units are the units of record for the purposes of this Standard. The values given in
parentheses are for information and comparison only.