When it comes time to get your building permits and pass inspection, a tiny little sticker on your lighting fixture could end up being the difference between opening day and weeks of headaches.
Knowing ahead of time about the standards and certifications that inspectors may be looking for will help you to stay sane through the oft-exasperating task of getting a space permitted, inspection-passing, and open.
In this post, we’ll look at four different standards that are often required by inspection technicians and local code. Almost 100 percent of the time,
And if you’re looking to qualify for rebates, your lighting will almost always need to be either DLC listed or Energy Star certified – the second two standards we'll explore in this post.
How are these standards different and which apply to your project? We’ll take a deeper dive here, to help you better understand each of them.
What is UL listing?
If a product comes with a UL mark, it signifies that it has passed Underwriter Laboratories’ (UL’s) safety requirements for use by consumers and in places of business.
What is ETL listing?
ETL is another electrical safety certification. It’s doled out by Electrical Testing Labs, which is operated by Intertek. ETL tests products to the same safety standards as UL.
Like with UL, an ETL mark signifies a product’s safety for the public.
What is the difference between UL and ETL?
In lighting, UL is a more common mark than ETL. But there really is little difference between the two, especially for those trying to pass inspection. Inspectors and Authorities Having Jurisdiction (AHJs) accept both, as both show compliance with the minimum safety standards put forth by NRTL.
It is, however, a common misconception that UL is the only acceptable mark of compliance.
Both UL and ETL are recognized as NRTLs, or Nationally Recognized Testing Laboratories. The U.S. Occupational Safety and Health Administration (OSHA) regulates and recognizes NRTLs.
According to many manufacturers who seek these certifications, gaining ETL listing tends to be a more expedited process than UL listing, despite the fact that testing is identical. And, in recent years, as technology has caused a proliferation of product, more manufacturers seem to be gravitating toward ETL as its listing laboratory, due to its quicker certification process.
In short, these days, ETL
When is UL or ETL listing required?
In an electrical product, like a lighting fixture, UL and ETL would specifically test to make sure it won’t end up malfunctioning and causing a fire, or some other safety hazard.
If a product is UL or ETL listed, or certified, it is deemed safe for the public. That’s precisely why either UL or ETL listing is almost always required by commercial building code.
When is UL or ETL listing not required?
A lot of residential-grade lighting products will be neither UL
In that situation, it’s our job to find a similar specification from a manufacturer who would put their products through NRTL (UL or ETL) safety testing to make sure you pass inspection and get open for business.
What about UL and ETL recognized components?
Sometimes, individual components to be used modularly in complete products will be separately recognized by an NRTL like UL or ETL. Generally, a component is recognized while a product is listed.
You can find a link to examples of these marks at the end of this blog post.
What is DLC listing?
Unlike UL and ETL, DLC is not a safety regulation. As such, it has no association with OSHA nor NRTL. Further, DLC is specific to lighting and does not list general electrical products like UL and ETL do.
DLC stands for DesignLights Consortium, and if a lighting product has earned certification from that organization, it signals a high level of both quality and energy efficiency.
According to its website, DLC "promotes quality, performance, and energy efficient commercial sector lighting solutions through collaboration among its federal, regional, state, utility, and energy efficiency program members, luminaire manufacturers, lighting designers, and other industry stakeholders throughout the US and Canada.”
The DLC label provides some certainty for decision makers. The organization's stringent standards do a lot of the vetting and due diligence that you would otherwise need to perform when working with a lighting manufacturer.
Lighting products often have to be DLC listed as a qualification standard
What is Energy Star certification?
Like DLC, Energy Star is energy efficiency-centric. Unlike DLC, Energy Star certifications tend to be on more residential-grade products than commercial ones.
Energy Star certification is awarded by the U.S. government’s Environmental Protection Agency (EPA).
According to its website, Energy Star is "the trusted, government-backed symbol for energy efficiency helping us all save money and protect the environment through energy-efficient products and practices.”
If a manufacturer has secured an Energy Star label on its product, it is probably pretty reputable and trustworthy. The second thing an Energy Star label tells you is probably obvious. The product is going to save you money on energy when compared with the conventional, run-of-the-mill, non-energy-efficient equivalent of that product.
Variations of UL and ETL marks
There are different variations of both UL
- Click here to see a complete list of UL marks used in North America
- Click here to see a complete list of ETL marks used in North America
We really don’t want a sticker to be the loose thread in a project that causes the whole thing to unravel. So part of our project management process includes properly vetting manufacturers to ensure that their products are reputable and won't be a roadblock for you in passing inspection.