In practically all states, GED® and HiSET®have no limited validity. Please contact a testing site near you for specifics in your state (remember, those people are there to help you!) All testing sites are found at https://gedeno.com/ged-test-by-state/
You can take the GED and HiSET subtests one at a time.
The “All-in-One” GED Prep
Get Your Diploma in 2 Months.
It doesn’t matter when you left school.