Written by: Paul Foster, Founder, CEO, OnePlan
Key Takeaways
- Public fireworks displays need coordinated approval from Public Works, the Fire Marshal, and Police. Each group has strict checklist items that can trigger costly revision cycles when missing.
- NFPA 1123 defines three concentric zones: firing area, fallout zone, and spectator area. Separation distances use the largest shell size at 70 feet per inch of mortar diameter.
- A seven-step workflow using live, to-scale mapping supports accurate zone placement, infrastructure positioning, capacity calculations, and print-ready deliverables.
- Common rejection triggers such as missing scale indicators, incorrect distances, or version-control problems are avoided by building plans on a geo-accurate map with real-time collaboration.
- OnePlan streamlines the process from data collection through final export, so teams submit compliant fireworks site plans faster. Schedule a 15-minute demo to see the workflow in action.
NFPA 1123 Zone Layout and Separation Distance Rules
NFPA 1123 organizes every outdoor fireworks display site into three concentric zones. Learn these zones before opening any mapping tool.
The three zones, from center outward, are:
- Firing Area (Discharge Site): The innermost zone where mortars, racks, and pyrotechnic crew operate. Only licensed operators and authorized personnel may enter this area during the display.
- Fallout Zone: The area where hazardous debris is expected to fall after a device is fired. This zone must remain free of spectators, unauthorized vehicles, watercraft, and readily combustible materials during the display per NFPA 1123 Section 5.1.5.
- Spectator Area: The outermost zone where the public views the display. Its inner boundary sits at the minimum separation distance calculated from the largest shell in the show.
A simple text diagram of the three zones looks like this:
[ SPECTATOR AREA ] ← Separation Distance → [ FALLOUT ZONE ] [ FIRING AREA ] [ FALLOUT ZONE ] ← Separation Distance → [ SPECTATOR AREA ]
The separation distance uses the largest shell in the show. NFPA 1123 Section 5.1.3.1 sets a minimum radius of 70 feet per inch of internal mortar diameter for aerial shells. The table below shows standard minimum separation distances for common shell sizes under NFPA 1123.
| Shell Size (Internal Mortar Diameter) | Minimum Separation Radius (NFPA 1123, 70 ft/in) | Notes |
|---|---|---|
| 3 inches | 210 ft | Entire display site radius based on largest shell |
| 4 inches | 280 ft | Entire display site radius based on largest shell |
| 5 inches | 350 ft | Entire display site radius based on largest shell |
| 6 inches | 420 ft | Entire display site radius based on largest shell |
Non-splitting or non-bursting comets and mines reduce the required radius to 35 feet per inch of mortar diameter under NFPA 1123 Section 5.1.3.2. State codes may be stricter. For example, Virginia code produces a 300-foot minimum radius for a 6-inch nonsplitting or nonbursting comet or mine. Always confirm the applicable state or local standard with your Authority Having Jurisdiction (AHJ) before finalizing any distances. With these zone requirements understood, you can move into the practical layout workflow.
Step 1: Gather Site Data and Local Requirements
Collect key documents and constraints before placing a single object on a map.
- The AHJ permit application and any jurisdiction-specific site plan checklist
- The pyrotechnic operator shell inventory, including the largest internal mortar diameter
- Property boundaries, adjacent land uses, and any sensitive facilities (hospitals, detention facilities) within the potential fallout radius
- Local fire marshal, police, and public works contact names for pre-submission coordination
- Any state-level code amendments to NFPA 1123 that apply in your jurisdiction
In OnePlan, open a new plan and navigate to your site using the live satellite or street map base. The map is geo-accurate and built on leading GIS technology, so you work with current aerial imagery from the start, not outdated screenshots.
Step 2: Draw NFPA 1123 Zones with Correct Distances
Use the area and perimeter calculator in OnePlan to draw the firing area first. Extend outward to the fallout zone boundary, then to the spectator area boundary. Every shape stays to scale as you zoom, so the separation radius calculated earlier appears accurately on the map instead of being estimated by eye on a static image.
NFPA 1123 Section 5.1.3 requires the entire display site radius to be calculated from the largest shell in the show. A mixed-shell display using both 3-inch and 6-inch mortars therefore uses the larger radius throughout. Label each zone clearly on the map. Increase or flag separation distances near health care or detention facilities if they fall within range.
Step 3: Place Safety Infrastructure and Access Routes
Place core safety infrastructure first, then pyrotechnic equipment, then access routes so the layout stays logical for reviewers.
- Mortar rack and trough locations within the firing area
- Firing unit location for electrically ignited displays
- Storage locations for magazines and ready boxes
- Fire extinguisher positions that match local requirements
- Water supply connections and hose locations
- Emergency response staging area outside the fallout zone
- Vehicle access routes and road closures
- Pedestrian ingress and egress paths
In OnePlan, drag and drop each infrastructure object from the library directly onto the to-scale map. Objects resize correctly as you zoom, so a mortar rack placed at its real-world footprint stays accurate throughout the plan.
Step 4: Label Crowd and Vehicle Capacities
Draw the spectator area boundary in OnePlan and use the standing crowd capacity calculator to determine how many people the zone can safely hold. The tool returns an instant capacity figure based on the outlined area, which gives you a defensible number for permit documentation. Label the spectator area with its dimensions and calculated capacity directly on the map.
For parking, use OnePlan traffic and transport tools to lay out parking zones, calculate cars per space, and mark vehicle access points. NFPA 1123 Section 5.1.2 requires parking areas to appear on the site plan submitted to the AHJ, along with their distances from the discharge site.
Step 5: Export the Bill of Quantities and Review Maps
Every object placed on the OnePlan map saves automatically to a structured inventory. Export the Bill of Quantities to Excel or CSV to produce a complete equipment list. This list covers mortar racks, extinguishers, barriers, signage, and more without any re-keying. It supports both permit submission and contractor coordination on show day.
Export a high-resolution PNG map at this stage for internal review. OnePlan exports up to A0 print-ready resolution, so the plan stays legible at the large format sizes many fire marshals and public works reviewers prefer.
Step 6: Share the Live Plan for Team and Agency Review
Share a live OnePlan link with your internal team and external stakeholders instead of emailing static PDFs that become outdated as soon as a change occurs. This live link solves two problems at once. Your internal team can edit the same plan simultaneously, which removes version-control chaos from email chains. External reviewers receive password-protectable view-only links that always display the current version, so you avoid resending updated PDFs every time a distance changes.
Eagle Mountain City's Events Manager Dawn Hancock described the shift: "Gone are the days of creating separate layouts for fire, police, facilities, and other departments. Now I can create a single, all-encompassing layout." Her team cut planning time from 8–10 hours down to a few hours per event and reported a 5x return on investment.
Step 7: Export Final Deliverables for Submission
Prepare a clear submission package that matches AHJ expectations.
- A high-resolution, to-scale site plan map with a legend, north arrow, scale indicator, and all labeled zones and distances
- The Bill of Quantities CSV as your equipment inventory
- Any supplementary maps required by the AHJ, such as a separate traffic or parking plan
Clark County, Nevada, for example, publishes guidelines for outdoor fireworks displays. Export your OnePlan PNG and convert to PDF as needed for submission. Because the plan was built to scale on a live map, the scale indicator is accurate, so one of the most common rejection triggers disappears before the plan leaves your desk. Before you submit, use the checklist below to confirm that reviewers will find every element they expect.
Start building your compliant site plan today with a free first event in OnePlan.
Eight-Element Fireworks Display Site Layout Checklist
Public Works, Fire Marshal, and Police reviewers most often look for the eight elements below. Run through this list before submission.
- Scale indicator and north arrow — missing or incorrect scale is the single most common reason site plans are rejected, because reviewers cannot verify setbacks and distances without it.
- Three labeled zones — firing area, fallout zone, and spectator area, each with dimensions and radii annotated.
- Separation distances — measured and labeled from the discharge site to spectators, parking, buildings, and any sensitive facilities. Confirm that these distances match the largest-shell calculation from your zone layout.
- Discharge site details — mortar rack and trough locations, ignition type, firing unit location, and storage areas for magazines and ready boxes.
- Fire protection equipment — extinguisher types and locations, water supply connections, and hose positions.
- Emergency access and response staging — vehicle access routes, road closures, and a designated emergency response area outside the fallout zone.
- Spectator and parking areas — dimensions, crowd capacity figures, vehicle access points, and distances from the discharge site.
- Legend and event details — event name, date, anticipated attendance, symbol legend, and property lines relative to the fallout zone.
Common Rejection Reasons and Practical Fixes
Incorrect or missing separation distances. Reviewers cannot verify setbacks without a clear, accurate scale indicator. Build the plan to scale on a live map from the start so the tool measures distances instead of relying on hand estimates. Label every separation distance explicitly on the exported map.
Missing access routes and emergency staging. Missing driveways, parking areas, or emergency-vehicle access paths is a frequent cause of rejection, especially when the project affects site circulation. Use OnePlan traffic and transport tools to draw access routes and mark the emergency staging area as a named object on the map before export.
Version-control issues. When plans move by email as static files, different departments often act on different versions. A fire marshal reviewing version 3 while public works reviews version 5 creates contradictions that stall approval. Share a single live OnePlan link so every reviewer sees the same current plan and every distance update appears for all users at once.
Property line mismatches. Cities frequently reject site plans when property lines do not match public records. If the fallout zone extends beyond the event holder's property, jurisdictions such as Montgomery County require a letter from the affected property owner. Verify property boundaries against public records before finalizing zone placement on the map.
Manual Methods Compared to a Modern Digital Workflow
Most local-government events teams still build fireworks site plans in PowerPoint, Excel, Canva, Photoshop, Google Maps, or internal static, top-view screenshots and plan files. None of these tools produce a to-scale output. A 420-foot separation radius drawn on a screenshot is a visual estimate, not a measured distance, and fire marshals recognize that difference. Version control quickly becomes chaotic as files move between departments, and a last-minute shell-size change often means redrawing the entire plan from scratch.
CAD software solves the scale problem but introduces new challenges. It requires specialist training, carries significant licensing costs, and produces files that most events staff cannot open or edit. Stadium's National Operations Manager Sam Wilson described the CAD reality: "It would take me a day to do eight maps in CAD. In OnePlan, it's just 2 hours."
OnePlan sits between these extremes. The platform is as easy to pick up as a non-specialist tool and as accurate as engineering software. The base layer is a live, zoomable satellite map built on leading GIS technology. Every object placed on it, including mortar racks, crowd barriers, extinguisher positions, and access routes, stays accurately to scale as you zoom. The area calculator measures separation distances precisely. The Bill of Quantities turns the finished map into an exportable equipment list. Real-time collaboration means Public Works, Fire Marshal, and Police all work from the same live plan instead of three separate PDFs. Eagle Mountain City's experience, detailed earlier, shows how a full day of planning can shrink to a few hours in a browser-based tool that any events staff member can use.
Get Started with OnePlan
Your next fireworks permit review can move forward without repeated revision cycles and last-minute scrambles. OnePlan gives local-government events managers and public-works teams a browser-based, drag-and-drop platform that produces reviewer-ready, to-scale fireworks site layouts. These layouts include labeled zones, measured separation distances, and an auto-generated Bill of Quantities in far less time than manual methods require.
See how OnePlan reduces revision cycles: start your first event free or book a 15-minute demo.
Frequently Asked Questions
How long does a typical fireworks site plan review take?
Review timelines vary significantly by jurisdiction and by the completeness of the submission. Fire marshal permits for event pyrotechnics typically require submission 30–60 days before the show. The review process often takes 10–30 days for final approval once submitted, and local approval is usually the most time-sensitive step. Submitting a complete, to-scale plan with all required elements, including labeled zones, separation distances, equipment locations, and crowd capacity figures, on the first attempt gives you the best chance of avoiding revision cycles that compress that timeline. Recurring events can sometimes establish annual approval frameworks with local fire authorities, which reduces paperwork for each show while maintaining full safety compliance.
Which stakeholders should review the site plan before submission?
At minimum, the licensed pyrotechnic operator, the local fire marshal, public works, and police should all review the plan before formal submission. The pyrotechnic operator confirms that shell sizes, mortar positions, and separation distances are accurate. Public works reviews access routes, road closures, and infrastructure placement. The fire marshal checks zone dimensions, fire protection equipment locations, and compliance with NFPA 1123 or applicable state code. Police assess crowd management, perimeter control, and emergency vehicle access. Sharing a single live OnePlan link with all reviewers simultaneously, instead of emailing separate PDF versions, ensures everyone works from the same current plan and sees any change made in response to feedback.
Do separation distances change by state?
Separation distances do change by state and sometimes by a wide margin. NFPA 1123 sets a baseline of 70 feet per inch of internal mortar diameter for aerial shells, but states and local jurisdictions can adopt stricter standards. Virginia, for example, requires 100 feet per inch of mortar diameter under its Statewide Fire Prevention Code, which produces a 600-foot minimum radius for a 6-inch shell compared to NFPA 1123's 420 feet. Some jurisdictions also impose additional restrictions near sensitive facilities such as hospitals, detention centers, or bulk hazardous material storage, often requiring at least double the standard separation distance. Always confirm the applicable code with your Authority Having Jurisdiction before finalizing any separation distances on the site plan, and document any AHJ-approved adjustments in writing before the display.
Can I update the plan after initial approval?
Update rules depend on your jurisdiction and the nature of the change. Minor operational adjustments may be acceptable with notification to the AHJ. Changes that affect separation distances, shell sizes, or zone boundaries typically require formal re-review and re-approval. A live digital plan offers a practical advantage because updates are immediate and traceable. When a shell size changes or a mortar position shifts, the map updates in real time and the revised export reflects the current state of the plan. This approach makes it straightforward to produce an updated submission document and show exactly what changed from the originally approved version, which is far cleaner than reconciling two versions of a static PDF.
Conclusion: Submit Compliant Fireworks Site Plans Faster
A reviewer-ready fireworks site layout functions as a documentation tool with specific, measurable requirements rather than a pure design exercise. Three labeled zones, correct NFPA 1123 separation distances based on the largest shell, to-scale infrastructure placement, crowd and parking capacity figures, and a complete equipment inventory determine whether a plan passes on first submission or returns for revision. Building that plan on a live, to-scale map removes the guesswork that static tools introduce and gives every reviewing department a single source of truth.
Build your next fireworks site plan on a live, to-scale map and get started free today.