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Supplement, Fall 1999

NAGS Notes


NAGS Unveils Part Numbers for Extra Auto Glass Services

by Catherine Howard


There has been a lot of interest in the National Auto Glass Specifications (NAGS) Labor Times™ lately, mostly as a result of the Benchmark™ Revaluation effort. As most folks know by now, the revaluation of the labor times is based on Mitchell Labor Times™.

We at NAGS have been asked why this revaluation of the labor times is necessary for glass. When Mitchell/Thomson acquired NAGS in 1991, there was no historical documentation of the NAGS Labor Times, there were inconsistencies in the NAGS Canadian times versus the U.S. times and there were differences between the NAGS Labor Times and Mitchell Times. In 1993, Mitchell International decided to migrate the NAGS times to Mitchell’s times by basing the labor times for all new parts from 1993 forward on the Mitchell standards. It was thought that this gradual change in the labor values over time would minimize the impact to the glass industry.

The problem with this approach is that parts similar in size and installation complexity can have different labor times. And there is still the problem of differing labor times for the same part in Canada versus the United States, which we are currently working with the Canadian market to rectify.

On the other hand, Mitchell International has a documented database of historical labor times, and it works aggressively to conduct in-depth research in the development of all published labor allowances. Mitchell employs a knowledgeable staff of labor editors to ensure all new times are accurate. Mitchell’s glass labor times are primarily based on the vehicle manufacturer’s recommended method of replacement. Labor editors then refer to OEM warranty labor allowances for glass removal and replacement and perform time studies when no verifiable formula exists.

The Mitchell Labor Times are given in hours and tenths of an hour. The times reflect the needs of an average, trained technician using factory recommended procedures and tools. The Mitchell Labor Times include allowances for vehicle preparation, normal clean-up associated with the operation, verification of the completed operation, the technician’s personal needs, preventative measures and any other service that would accompany such an operation. NAGS labor times also allow for: work order review, vehicle positioning, tool organization, operational performance (removal and installation of adjacent components, broken glass and clean-up of tempered glass), testing for leaks, component disposal and urethane and tool clean-up.

Of course, there are other service operations within auto glass replacement that are not included in the NAGS Labor Times. In order to address this need for the industry, NAGS has created service part numbers. The NAGS Service Part Number System™ is designed to be used for services not factored into the NAGS Labor Times. There are no values associated with these numbers, rather their value is to be negotiated between trading partners. We have assigned service part numbers for:

• Air Bag Activation/De-activation;
• Glass Cut to Size;
• Decal Application/Removal
• Freight
• Hazardous Waste Removal;
• Mobile Service;
• Removal and Installation (R & I);
• Rust Work (Removal);
• Window Tinting;
• VIN Etching;
• Vinyl Peelback; and • Storage.

These part numbers are printed in the front of the 1999 Summer (July 5) Calculator and will appear in subsequent publications. Also, we will include a table of these numbers in all NAGS electronic data extracts in the Fourth Quarter.

 wpe3.jpg (1633 bytes) Catherine Howard is vice president/general manager of NAGS in San Diego, CA.


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