Carroll County, MD Swimming Pools & Spas: Fencing & Safety Requirements (2026)
Key Facts
- Adopted pool code
- Intl. Swimming Pool & Spa Code, 2021 Ed.
- Barrier exception
- Lockable cover meeting ASTM F1346
- Storable pool exemption
- Max 42 inches deep, non-metallic walls
- Pre-permit inspection
- Grading inspection required for in-ground pools
- Maximum penalty
- $500 fine or 30 days jail
Summary
Carroll County adopts the International Swimming Pool and Spa Code, 2021 Edition, and locally rewrites its barrier trigger at § 170.22: every pool and spa must meet the code's Section 305 barrier standards for restricting entry, unless the spa or hot tub has a lockable safety cover certified to ASTM F1346, in which case Sections 305.2 through 305.7 do not apply.
Delete Section 305.1 and replace with "The provisions of this section shall apply to the design of barriers for restricting entry to pools and spas. Where spas and hot tubs are equipped with a lockable safety cover complying with ASTM F1346 the areas where those spas and hot tubs are located shall not be required to comply with sections 305.2 through 305.7".
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-15: Supplement contains: Local legislation current through July 30, 2026).
Full Breakdown
7 apply to any residential or commercial pool or spa in the county. The only carve-out is for spas and hot tubs fitted with a lockable safety cover that meets ASTM F1346: those units are not required to meet the separate perimeter-barrier sections, because the certified cover substitutes for a physical enclosure. A pool that does not qualify as a 'storable' pool, defined elsewhere in Chapter 170 as one holding no more than 42 inches of water with non-metallic, molded polymer, or inflatable walls, must instead meet the adopted barrier code in full.
112 requires the county to perform a preliminary grading inspection, folding pool construction into the same permit review used for new residences and additions. The Building Official under Chapter 170 administers both the barrier rule and the permit process, and can require documentation of an ASTM F1346-rated cover before allowing the exception.
Violations & Fines
Installing or maintaining a pool or spa without the required Section 305 barrier is a Construction Codes violation subject to § 170.99: a misdemeanor punishable by up to a $500 fine, 30 days' imprisonment, or both, with every day the barrier remains missing counted as a separate offense. The Building Official may also issue a § 170.46 notice of violation with a penalty payable within 72 hours before referring the matter to a District Court Commissioner.
Frequently Asked Questions
Does my above-ground pool need a fence in Carroll County?
Can I skip a fence around my hot tub?
Who inspects a new in-ground pool in Carroll County?
Sources & Official References
Other rules in Carroll County
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