Section 15IC Joint supplementary plans by agreementF1C1
Two or more local planning authorities may agree to prepare a joint supplementary plan under section 15CC, in which case in relation to that plan references in subsection (3) of that section to the area of the local planning authority are to be read as references to the combined areas of the relevant authorities.
Two or more minerals and waste planning authorities may agree to prepare a joint supplementary plan under section 15CC, in which case in relation to that plan references in subsection (5) of that section to the relevant area are to be read as references to the combined relevant areas of the relevant authorities.
This Part applies for the purposes of any step which may be, or is required to be, taken in relation to the joint supplementary plan as it applies for the purposes of any step which may be, or is required to be, taken in relation to a supplementary plan.
For the purposes of subsection (3) anything which must be done by or in relation to a local planning authority or (as the case may be) a minerals and waste planning authority in connection with a supplementary plan must be done by or in relation to each of the relevant authorities in connection with the joint supplementary plan.
Subsections (3) and (4) are subject to such modifications of this Part, as it applies to joint supplementary plans, as may be prescribed.
If the relevant authorities include one or more authorities in relation to whose area a spatial development strategy is operative, the requirements of this Part in relation to the spatial development strategy, which apply to or in respect of supplementary plans, apply—
to or in respect of the joint supplementary plan, and
in relation to such of the area to which the joint supplementary plan relates as the spatial development strategy is operative in relation to.
Subsections (8) to (10) apply if a relevant authority withdraws from an agreement mentioned in subsection (1) or (2).
Any step taken in relation to the joint supplementary plan must be treated as a step taken by—
a relevant authority for the purposes of any corresponding supplementary plan prepared by them;
two or more other relevant authorities for the purposes of any corresponding joint supplementary plan.
Any independent examination of the joint supplementary plan must be suspended.
If, before the end of the period prescribed for the purposes of this subsection, any of the relevant authorities request the Secretary of State to do so, the Secretary of State may direct that—
the examination is resumed in relation to—
any corresponding supplementary plan prepared by any of the relevant authorities, or
any corresponding joint supplementary plan prepared by two or more of the relevant authorities;
any step taken for the purposes of the suspended examination has effect for the purposes of the resumed examination.
The Secretary of State may by regulations make provision as to what is a corresponding supplementary plan or a corresponding joint supplementary plan for the purposes of this section.
A joint supplementary plan is a supplementary plan prepared jointly by two or more relevant authorities in accordance with this section.
In this section “the relevant authorities” means the authorities who enter into the agreement mentioned in subsection (1) or (as the case may be) (2).
Annotations
Textual amendments
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Ss. 15A-15LH and cross-headings substituted for ss. 15-37 and cross-heading (3.3.2026 for the purpose of making regulations only, excluding ss. 15A-15AI, 15K and 15LE(2)(a)(b)(c)(k)(l)(3); 25.3.2026 in so far as not already in force for the insertion of ss. 15B(1)(2)(a)(c)-(i)(3)-(12), 15BA-15C, 15CA(1)-(6)(a)-(g)(i)(7)(8), 15CB-15EA, 15G-15HA, 15HC-15JB, 15L-15LD, 15LE(1)(2)(d)-(j)(m)-(p)(3)(4), 15LF-15LG and 15LH (in part), otherwise prosp.) by Levelling Up and Regeneration Act 2023 (c. 55), s. 255(3)(b), Sch. 7 (with s. 247); S.I. 2026/169, regs. 2, 3(b) (with Schs. 1, 2) (as amended by S.I. 2026/333, regs. 1(2), 2)
Modifications
- C1
S. 15IC modified (25.3.2026) by The Planning and Compulsory Purchase Act 2004 (Local Planning) (Modification and Consequential Amendments) (England) Regulations 2026 (S.I. 2026/170), regs. 1(2), 4, 5
Notes on Part 2
Modifications
- C1
Pt. 2 modified (temp.) (28.11.2008) by Local Government (Structural Changes) (Transitional Arrangements) (No.2) Regulations 2008 (S.I. 2008/2867), regs. 1(1), 21(1), 23(2) (with reg. 1(2))
- C2
Pt. 2 modified (25.3.2026) by The Planning and Compulsory Purchase Act 2004 (Local Planning) (Modification and Consequential Amendments) (England) Regulations 2026 (S.I. 2026/170), regs. 1(2), 7
- C3
Pt. 2 applied (25.3.2026) by The Town and Country Planning (Local Planning) (England) Regulations 2026 (S.I. 2026/186), regs. 1(2), 78(8) (with Sch.)
- C4
Pt. 2 modified (16.4.2026) by S.I. 2026/170, reg. 7A (as inserted by The Planning and Compulsory Purchase Act 2004 (Local Planning) (Modification and Consequential Amendments) (England) (Amendment) Regulations 2026 (S.I. 2026/350), regs. 1(2), 2)