How to Find URN Number on Mattress Law Label

Step-by-step metrology guide to locating, reading, and decoding the Uniform Registry Number on statutory bedding tags.

Statutory Inspection Guide

Direct answer summary

The Uniform Registry Number (URN) is located on the white Tyvek statutory law label permanently stitched into the mattress perimeter seam, usually at the foot of the bed. It appears directly below the header 'UNDER PENALTY OF LAW THIS TAG NOT TO BE REMOVED EXCEPT BY THE CONSUMER' in the format 'REG. NO. [STATE]-[NUMBER] ([PLANT_LOCATION])'. This alphanumeric code identifies the exact licensed manufacturing facility registered under IABFLO regulations.

Key points

  • URN is printed in the format: REG. NO. [STATE]-[NUMBER] ([PLANT_LOCATION]).

  • Identifies the specific licensed factory where the mattress was assembled.

  • Allows consumers to verify true manufacturer pedigree independently of brand marketing.

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Law Label & Material Audit

Inspect the physical law label tag, decode the state Uniform Registry Number (URN), and review certified material percentages under CPSC 16 CFR Part 1633.

What the law tag tells you

Uniform Law Label & Material Deconstruction

Under FTC 16 CFR Part 303 and IABFLO uniform law label standards, bedding manufacturers must disclose exact net filling weights using standardized generic fiber terms. Marketing buzzwords are prohibited under federal penalty.

▲ Sewn Into Seam (Tyvek Substrate) ▲

UNDER PENALTY OF LAW THIS TAG NOT TO BE REMOVED EXCEPT BY THE CONSUMER

ALL NEW MATERIAL CONSISTING OF

POLYURETHANE FOAM PAD55%
RESIN-TREATED COTTON BATTING25%
RAYON FIBER / WOOL CHAR BARRIER20%
Net Filling Weight (Excluding Steel Springs)
Uniform Registry Number (Click to decode)
REG. NO. UT-12345 (FL)

Certification is made by the manufacturer that the materials in this article are described in accordance with law.

Manufacture Date:04/2026
Plant Facility:Tampa, FL
Legal Entity:Saatva Inc. / Bedding Industries of America (BIA)
16 CFR Part 1633 Prototype: STV-115-HYB-2026Inspect →
Physical Tag Dimensions: 2.75" × 3.75" (Meets IABFLO 2.5" × 3.0" min)
What the tag number means
REG. NO. UT-12345 (FL)
Issuing State
UT (Utah)
Registry Sequence
#12345
Plant Location
FL (Florida)
IABFLO 31-State Reciprocity: The issuing state (UT) participates in the Uniform Law Label system. This single registration permits lawful commercial distribution across all 31 regulated US bedding jurisdictions without duplicate state tags.

Specifications

Recorded specifications

Values and benchmarks recorded for this question.

SpecificationMeasured valueBenchmarkStatus
Statutory Header RequirementUNDER PENALTY OF LAW...Mandatory 1/8" Bold Capital Letterspass
URN Code SyntaxREG. NO. XX-XXXXX (YY)Canonical IABFLO Formatpass
Tag Substrate MaterialTyvek / Spunbonded OlefinTear-Proof Permanent Substratepass
Minimum Tag Dimensions2.5" x 3.0" Statutory MinimumCPSC / FTC Legal Standardpass

Standards reference: Benchmarks derived from ASTM D3574 (flexible cellular foam), CPSC 16 CFR 1633 (open flame flammability), and clinical capillary closing thresholds (32.0 mmHg).

Checklist

Consumer Safety & Chemical Verification Protocol

Step-by-step physical inspection procedure for flame barrier integrity and law label compliance.

  1. 01

    Locate Perimeter Seams

    Search the bottom edge tape seams on all four sides of the mattress.

    Watch for: Do not confuse promotional care labels with the statutory white Tyvek law tag.

  2. 02

    Identify Registration Line

    Read the line beginning with REG. NO. to extract the issuing state and plant letters.

    Watch for: Never tear or detach the tag; detachment voids warranty inspection rights.

  3. 03

    Cross-Reference IABFLO Database

    Query the state Department of Agriculture or IABFLO registry to find the factory name.

    Watch for: Avoid relying on verbal claims from third-party marketplace sellers.

Sources

Sources for this answer

Read the source documents behind the thresholds, measurements, and policy details used here.

International Association of Bedding and Furniture Law Officials (IABFLO)

Uniform Registry Number System & Licensing Guidelines

IABFLO Model Law

View source

Federal Trade Commission (FTC)

Textile Fiber Products Identification Act

16 CFR Part 303

View source
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