Van e elévülési idő csak írásbeli/szóbeli nyelvvizsgák esetében?

Az IELTS bizonyítvány nem évül el, két szövegük van erre, az egyik a honlapon:

While it is up to each organisation to set a validity period that works for their purposes, the IELTS partners recommend a 2-year validity period for IELTS test results based upon the well-documented phenomenon of second language loss or 'attrition’.

A másik a kurerns tájékoztatóban:

Results validity period

Organisations will not usually accept a Test Report Form that is more than two years old unless you provide evidence that you have actively maintained or tried to improve your English since taking the test. The IELTS Test Partners cannot confirm the validity of test results that are more than two years old.

Na, a FOEFL az más:

TOEFL:ETS reports scores for 2 years after the test date.

Rajta: Scores more than 2 years old cannot be reported or validated