I graduated from UT health science center and worked for a year in texas
What school did you go to? And did you have to take OSCE?
At the September 2016 CNO Council meeting it was brought up that the NNAS assessment wasn't letting anyone through and their number of IEN's gaining registration after NNAS was implemented was almost zero. So they decided to allow those with "non comparable" results to submit some paperwork regarding their nursing work experience, current job description, etc, and they would review it before having the applicant referred to take OSCE. Applicants always have the choice to take OSCE anyway, but who would do that without first checking that their experience wouldn't be accepted as the equivalent of a Canadian graduate? In September they were still going on about how NNAS is a valid assessment tool and they weren't worried that it wasn't catching good education and ya-di-ya-di-ya-da, and that the way they handle the NNAS results is what needs tweaking. The minutes from the last meeting in March show that they did admit to some extent that NNAS is concerning, since NNAS is reviewing the process by which they do their evaluation.
So, you might be lucky, since you are in this situation now at a time when they have agreed to allow nursing work experience to be submitted and reviewed by CNO. Unfortunately you won't be reimbursed for the almost $1000k CAD that you spent on a faulty assessment of your nursing education by NNAS though (since the review they are doing will obviously be falling after you had your assessment completed. And I will now be reimbursed for that either, nor will I be reimbursed for the OSCE that I had to take to prove myself, even though my school (Michigan State) was approved by CNO for years and years up until NNAS was implemented and that wiped out any approvals, which is ridiculous because the curriculum didn't change, only their assessment process. It's likely that your school was previously accepted as well.
If you lucky (quite possible) they will accept your nursing work experience (I'm assuming it was within the past 3 years) and you will not have to do OSCE like I did. If you are not lucky, you will have to go through the same hell I went through, and pay the $500 fee for OSCE, as well as endure the stress of that exam.
I do think though that you will be lucky. CNO has been letting a lot of US educated applicants through recently, I think because they are under some heat for their assessment process.