(USA) I know many people who call themselves "engineers" who studied HTML and JavaScript and develop websites or web apps. I know many "engineers" who graduated from "Software Engineering" or "Computer Science" but have no governmental certification. Unlike Civil Engineering or other engineering disciplines, in the US software work is not as regulated, though I have seen regulations when dealing with Government work, calling for "engineers" to actually be accepted by a "official body of engineers."
Basically, in software in US, you can be an "engineer" and not get in trouble if you are not.
Basically, in software in US, you can be an "engineer" and not get in trouble if you are not.