86Part 3: interpretation
(1)In this Part—
“authorisation” means an authorisation under section 61 (including that section as modified by sections 78 and 80),
“designated senior officer”—
(a)in relation to a relevant public authority which is a local authority, has the meaning given by section 73(2), and
(b)in relation to any other relevant public authority, has the meaning given by section 70(3),
“filtering arrangements” means any arrangements under section 67(1),
“officer”, in relation to a relevant public authority, means a person holding an office, rank or position with that authority,
“relevant public authority” means a public authority which is a relevant public authority for the purposes of this Part by virtue of section 70(2) or 73(1).
(2)In this Part “local authority” means—
(a)a district or county council in England,
(b)a London borough council,
(c)the Common Council of the City of London in its capacity as a local authority,
(d)the Council of the Isles of Scilly,
(e)a county council or county borough council in Wales,
(f)a council constituted under section 2 of the Local Government etc. (Scotland) Act 1994, and
(g)a district council in Northern Ireland.
(3)See also—
section 261 (telecommunications definitions),
section 262 (postal definitions),
section 263 (general definitions),
section 265 (index of defined expressions).