In some areas, software comes to mind, I don't think it matters what you call yourself but in my world it is a very big deal.
I am NICET Certified in the layout of fire sprinkler systems. NICET stands for the
National Institute for Certification in Engineering Technologies and is a division of the National Society of Professional Engineers.
There's a big difference between what I do and what a licensed professional engineer (PE) can do. I can lay out systems, perform all the hydraulic calculations and in most areas of the country I can submit drawings for approval under my signature which is not a seal.
But I dare not call myself an "engineer" because I am not one.
What is the difference between what I do and what an engineer would do? The big difference is the engineer can "performance based" design where I must follow a series of very specific standards without deviating. To give an example a standard sprinkler must not ever be more than 15'-0" apart, be more than 7'-6" off a wall or cover more than 130 Sq Ft per sprinkler for Ordinary Hazard Occupancy and I will never deviate from this. However, a professional engineer can perform some calculations and certify that, given the water pressures available, the same object will be reached if he places the sprinkler 7'-7" off the wall instead of the 7'-6'. But this is extremely rare to find, in 42 years I have only seen it one time, because once the engineer seals and signs it he owns it and God help him if something goes wrong.
When it comes to designing fire sprinkler systems I feel confident in saying I am better at that than 95% of the professional engineers out there not because I am smarter (
I'm not) or have more education (
I don't) but fire sprinkler design (dare I call it "engineering"?) is all I have done for 42 years so I ought to be pretty good at it.
Just to remind everyone I am not an engineer.