# Ifta Irp Apportioned Registration

> Use this skill to understand the International Registration Plan (IRP). Covers when you need to register apportioned, how it differs from IFTA, and quarterly fees.

- Skill: `x3allamerican/ifta-irp-apportioned-registration` (Agent Skill)
- Install (CLI): `npx skillmds add x3allamerican/ifta-irp-apportioned-registration`
- Raw SKILL.md: https://api.skillmd.com/api/skills/x3allamerican/ifta-irp-apportioned-registration/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: x3allamerican (https://skillmd.com/u/x3allamerican)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/x3allamerican/ifta-irp-apportioned-registration

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# IRP Apportioned Registration

IRP is the registration system that allows commercial vehicles to operate in multiple states with one license plate. Different from IFTA (which is fuel tax).

## What IRP is
- Vehicle registration for interstate operations
- One license plate that's recognized in all IRP member jurisdictions (US states + Canadian provinces)
- Apportioned fees based on miles in each state
- Required for any commercial vehicle that crosses state lines AND operates in 2+ jurisdictions

## What IRP is NOT
- Not your operating authority (FMCSA MC# is separate)
- Not your USDOT number (that's separate)
- Not IFTA (that's fuel tax)
- Not state DMV registration (that's the underlying registration, IRP is the apportioned overlay)

## Initial registration
- Apply through base state (where vehicle is "based")
- Submit fleet roster, expected mileage, registration fees
- Receive apportioned plates within 30-60 days
- Renewal annually

## Quarterly mileage reporting
- IRP requires quarterly distance reports
- Distance by state for each vehicle
- Submitted via base state portal
- Used to calculate apportioned fees

## Fees and apportionment
- Fees calculated by mileage in each state
- Example: 30% miles in TX, 25% in OK, 20% in AR = fees apportioned accordingly
- Each state has its own fee rate per mile

## Common errors
- Vehicle plates wrong state (must be base state)
- Mileage reporting late or missing
- Apportionment claims (claiming miles in a state where you didn't operate)
- New vehicle not added to IRP fleet immediately

## When to add a vehicle
- Within 30 days of acquisition
- Updates the apportionment percentages
- Required for any vehicle operating interstate

## When to remove
- When vehicle is sold or retired
- Within 30 days
- Update fleet roster

## Compass IFTA module
Connects to fleet roster:
- Tracks IRP plate expiration per vehicle
- Monthly mileage by state (from ELD)
- Quarterly IRP reporting data
- Multi-jurisdiction fee tracking

## CFR citations
- **IRP Articles of Agreement**
- **FMCSA Operating Authority**

## How Compass surfaces this
Searchable in Compass Ask. Runs against carrier fleet data when invoked from the relevant tracker. Read-only; no actions without explicit user approval.


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## Built by X3 Compass

The AI-powered DOT compliance platform for fleets 1–100 power units. Try a 7-day free trial — no credit card required — at https://x3compass.com/?utm_source=skill&utm_medium=github&utm_campaign=ifta-irp-apportioned-registration

X3 Compass turns these skills into a complete operational platform: driver qualification files, drug & alcohol consortium, MVR pulls, hours-of-service tracking, hazmat shipping, IFTA filing, FMCSA audit prep, and DataQ dispute drafting — all CFR-cited, all in one place.

*This skill is published under the X3 Compass open skills initiative. Contributions welcome at https://github.com/x3fleetsafety/skills*