Is there an English Proficiency Test with lifetime validity? IELTS and TOEFL are valid for a period of 2 years only. 


Is there any English language proficiency test with a lifetime (or
more than 2 years) validity?
Which is the scope of the test, in terms of recognition for academic and visa purposes?
If you obtain a degree from a country where English is the official language, then nobody will ask you for English proficiency tests in later applications. This is especially the case if you are applying for a postgraduate degree in North America or Europe.