The Marking and Labeling Systems program covers labels (nameplates or markers) and label materials that have been submitted to UL for evaluation in accordance with prescribed permanence of marking performance requirements so they can be used to display information on products.
Most products are required to be permanently marked with specific safety-related information including hazards, warnings, cautionary markings, installation instructions, and electrical ratings. Labels and label materials that comply with the Marking and Labeling Systems requirements fall under UL’s Component Certification Program, which provides a convenient way for manufacturers to acquire labels that meet performance of marking requirements applicable to their UL certified products. Marking and Labeling Systems are covered under the following five categories based on the type of product and end-use application.
|Category Name||CCN (Certified to UL Requirements)||CCN (Certified to Canadian Requirements)|
|Marking & Labeling Systems||PGDQ2||PGDQ8|
|Marking & Labeling Systems – Printing Materials||PGJI2||PGJI8|
|Marking & Labeling Systems -In-Mold||PGIM2||PGIM8|
|Marking & Labeling Systems – Materials||PGGU2||PGGU8|
|Marking & Labeling Systems – Limited Use||PGIS2||Not Applicable|
Labels and label materials Recognized under the first four category codes numbers (CCN) – PGDQ2, PGJI2, PGIM2 and PGGU2 – are tested in accordance with the test methods in ANSI/UL 969, “Marking & Labeling Systems”. They are suitable for use on a wide variety of UL Certified products. Labels Recognized under the category code PGIS2 are evaluated in accordance with unique label requirements in a specific UL end-product Standard and are thus “limited in use” to the products covered under that Standard. In addition, UL evaluates to Canadian Requirements – PGDQ8, PGJI8, PGIM8 and PGGU8 – that are tested in accordance with the test methods in the Canadian Standard, CSA C22.2 No. 0.15, Adhesive Labels.
All Recognized Component Marking and Labeling Systems are intended for application at an end-use product factory and fall under UL’s Follow-Up Service (FUS) program. This program states that UL certified products must continue to be manufactured in compliance with UL’s requirements.
A brief description of each category and corresponding Category Code Number (CCN) can be found further down this webpage.
Evaluation for Marking and Labeling Systems Recognition includes a construction examination and testing for permanency. Environmental conditioning of labels typically includes testing for exposure to high humidity or occasional exposure to water, elevated temperatures, sunlight or chemical agents. After environmental conditioning, labels are visually examined for curling, wrinkling, shrinkage or loss of adhesion around the perimeter. Testing also typically includes evaluation of legibility, resistance to defacement, and adhesion.
Conditions of Acceptability
Guidelines addressing the suitability of the label when used with an end product are included in the UL Report under “Conditions of Acceptability.” The Conditions of Acceptability generally cover application surfaces, temperature ratings, and additional exposure conditions for which the label was found acceptable. The Conditions of Acceptability may also include print color limitations, label size limitations, and special use applications. The Conditions of Acceptability for labels are also published in UL’s Component Online Directory.
Label converters and printers who use Recognized label materials (label stocks, laminating adhesives, overlaminations) can receive the benefit of the Recognition established for the label material when establishing Recognition for their printed labels. This process is known as “Label Adoption.” Learn More .
Marking and Labeling Systems Categories
A brief description of each certification category and corresponding Category Code Number (CCN) covered under Marking and Labeling Systems at UL can be found below.
- Marking & Labeling Systems (PGDQ2) covers printed labels that are manufactured by a label printer/converter. As a general rule, these labels are sold as die-cut, finished printed labels. Labels have not been evaluated to receive additional printing by the end-use product manufacturer. Labels are tested in accordance with ANSI/UL 969, Marking & Labeling Systems. See Marking & Labeling Systems Guide for details.
- Marking & Labeling Systems – Printing Materials (PGJI2) covers printed labels and unprinted stocks that have been evaluated to receive additional printing by end-use product manufacturers using simple printing equipment, including thermal transfer, laser, and hot stamping. Products in this category may be sold by label material suppliers in bulk roll form or by label printer/converters as die-cut labels that are blank or preprinted with blank areas in which information is to be added. Additional printing inks for which the labels have been found compatible are specified in the Recognition and only those inks are considered acceptable. Additional printing is considered an optional process for printed labels. Materials are tested in accordance with ANSI/UL 969, Marking & Labeling Systems. See Marking & Labeling Systems Printing Materials Guide for details.
- Marking & Labeling Systems – Materials (PGGU2) covers materials that are used to make labels. Products in this category include blank label stocks, laminating adhesives, and overlaminations. These products are typically produced in bulk sizes and sold to label printers/converters for the production of labels for PDGQ2 and PGJI2. Materials are tested in accordance with ANSI/UL 969, Marking & Labeling Systems. See Marking & Labeling System Materials Guide for details.
- Marking & Labeling Systems, In-Mold (PGIM2) covers printed in-mold labels that are manufactured by a label printer/converter and are intended to embed into a molded plastic part during the molding process. As a general rule, these labels are sold as die-cut, finished printed in-mold labels. Labels have not been evaluated to receive additional printing by the end-use product manufacturer. In-mold labels are tested in accordance with ANSI/UL 969, Marking & Labeling Systems. See Marking & Labeling Systems, In-Mold Guide for details.
- Marking & Labeling Systems – Limited Use (PGIS2) covers labels, cord tags (securement-strap attached or flag type), and placards that have been evaluated for compliance with requirements in specific UL end-product standards where performance requirements are either less stringent or different than those in ANSI/UL 969, Marking & Labeling Systems. Label use is limited to the types of products covered by those end-product standards, such as enclosures for electrical equipment, power supply cords, or gate operators. See Marking & Labeling Systems, Limited Use Guide for details on additional products that can be covered by this category.
Recognition for Canada
Under the Canadian Certification Program, UL tests products to the Canadian Standard, CSA C22.2 No. 0.15, Adhesive Labels. As the CSA Standard includes test methods that differ from UL 969, additional testing is necessary to grant Canadian Recognition. Products found to be in compliance with the Canadian Standard are marked with the Canadian UL Recognition Mark. Label products certified for Canada are published under Category Code Numbers PGDQ8, PGJI8, PGIM8 and PGGU8.
Labels Evaluated to the Requirements of Other Standards
While all products Recognized in PGDQ2, PGJI2, PGIM2 and PGGU2 have been evaluated in accordance with ANSI/UL 969, Marking & Labeling Systems, some products may also be evaluated for specific end-use applications – including portable ladders and fire extinguishers – where the governing standard has requirements that go beyond those in ANSI/UL 969.