No. If I were you, I'd start asking for Sr. HP status (at least 18.1) now. You may not get it right away, but I've learned that nou never get anything in this business the first hundred times you ask for it anyway. A BS degree and 6 mos of junior time ought to make you pretty close. It all depends on how particular utilities interpret the ANSI standard and how much junior time they are going to credit you. Honestly, if I were making the decision (which I am not) I'd take you as an 18.1 as long as the 6 mos. of junior time was fairly recent (at least one outage within the past year). I would probably count about a quarter of your decon time as junior time too. You were probably qualified to do surveys for a lot of that time (and I'm just a generous guy) so, 25% might fly.
It's not the same thing as NRRPT. While ANSI specifies a number of hours or weeks of experience, and allows for a degree to cover part of that time, they don't necessarily require the degree to be directly related to Rad. Protection. The NRRPT however, requires that all experience and training be directly related to RP in order to count toward the five years. In your case, they are going to count individual courses to determine what training applies. Stuff like physics, chemistry, environmental science, mathematics ... etc. counts. Courses in Humanities, Social Sciences, non-science electives, and technical courses not applicable to Radiation protection will not count. So, you'll be better off submitting a transcript.
If I had to bet the farm on it, I'd say that they are probably going to credit you one year for your college work.
Regardless, you will have been a 3.1 for quite some time before being eligible for the NRRPT. Anyone who has met the NRRPT criteria, will have already been a 3.1 for at least a year or two.
Your best course of action is to check with the NRRPT. I'm not even sure that they count junior time as direct experience. They might only count it as training time, since Junior HP's are not actually qualified technicians. You'd have to ask them. But, that's not your first priority. In fact, it's way too early to spend the energy on that anyway. Chances are that you will find a good job as an engineer long before you take the NRRPT anyway, so why waste all that time and money?
But, if a job as a SR. HP is what you want, then you need to do the following:
1.) Get your resume up to date
2.) Post it here in the jobs section of NukeWorker.com
3.) Send it to Bartlett, Atlantic, TriVis, MarCom, and any other company you can find who is looking for HP's
4.) Accept the fact that you may need a little more junior time, but don't let them keep you a junior for too long.
5.) Study for the Nuclear Fundamentals Exam (formerly known as the Northeast Utilities Exam). You're going to have to pass that to get a SR. HP job, no matter what. See the Study Tab at the top of the page to find helpful study materials.
Good luck.