NREMT is good for 2 years and have always been.
National Registry Website said:Successfully complete, within the past twelve months, all sections of a state-approved EMT-Basic practical examination that equals or exceeds the established criteria of the National Registry.
Are you sure about that? I passed the EMT-B class back in 2005 and I can almost guarantee that I was given 12 months to take the NREMT or I would become ineligible. I know it's 2 years now, of course.
Maybe this was because my county's skill test is only valid for 1 year? Who knows...