Open Data Library & Research Methodology (2026)
Verified, downloadable datasets with authoritative sources and retrieval dates. Compiled for transparency, public consumer utility, and independent quantitative reference.
Data Collection Standards & Verification Methodology
VehCalc publishes standardized quantitative datasets designed to eliminate ambiguity in consumer automotive finance. To ensure 100% data integrity and avoid unverified secondary citations, every numeric attribute across our calculators and research library adheres to a four-tier validation protocol:
Selected Statutory Sample: 2026 Child Restraint Rules & Penalties
Preview of key state requirements extracted from our comprehensive national compliance sheet:
| State | Rear-Facing Mandate | Booster Seat Requirement | Base Statutory Fine | Governing Statute |
|---|---|---|---|---|
| California | Until age 2 (unless ≥40 lbs or ≥40 in) | Until age 8 or 4'9" in height | $100 (1st offense), $250 subsequent | Cal. Veh. Code § 27360 |
| Texas | Manufacturer guidelines required | Until age 8 or 4'9" in height | $25 to $250 | Tex. Transp. Code § 545.412 |
| Florida | Manufacturer guidelines required | Through age 5 (separate carrier or booster) | $60 plus moving violation points | Fla. Stat. § 316.613 |
| New York | Until age 2 | Until age 8 | Up to $100 plus 3 license points | N.Y. Veh. & Traf. Law § 1229-c |
| Illinois | Until age 2 (unless ≥40 lbs or ≥40 in) | Until age 8 | $75 (1st offense) | 625 ILCS 25/ Child Pass. Prot. Act |
2026 Child Car Seat Laws by State
Full 50-state plus D.C. statutory matrix detailing rear-facing thresholds, booster requirements, front-seat passenger restrictions, medical exemption rules, and statutory fines.
Retrieved: 2026-08-12 · 2 Sheets · 51 Jurisdictions
Sources: IIHS, AAP, NHTSA FMVSS 213 / 213a
Informational reference only. When travelling across state lines, comply with the strictest applicable statute.
2026 Vehicle Fleet Dataset (328 Models)
Comprehensive vehicle specifications: body style, powertrain, EPA MPG/MPGe, MSRP benchmarks, tire and battery configurations, common technical service bulletin (TSB) fault patterns, and maintenance schedules across major passenger car and truck manufacturers.
Retrieved: 2026-08-30 · 328 Vehicles · CC BY 4.0
Sources: U.S. DOE/EPA fueleconomy.gov, OEM specifications, NHTSA database
Fleet benchmarks are owner-reported and official publication aggregates. Individual vehicle maintenance requirements may vary.
Academic & Institutional Citation
Researchers and industry analysts may freely utilize and redistribute VehCalc open datasets under the Creative Commons Attribution 4.0 International License (CC BY 4.0).
VehCalc Research Group. (2026). U.S. Motor Vehicle Finance, Taxation & Statutory Restraint Dataset [Data file and methodology]. Retrieved from https://vehcalc.com/data-library/