For detailed information about SIELE certification of your competency in the Spanish language (which is taken online, on a date of your choosing, at PROBIGUA) please go to SIELE's excellent English website, via this link:
https://siele.org/en/home
PROBIGUA is an accredited SIELE exam center and a proctor institution for the OPI tests of the ACTFL
To learn more about the ORAL PROFICIENCY INTERVIEW and related tests of the American Council on the Teaching of Foreign Languages
which you can take at PROBIGUA, please go to:
https://www.languagetesting.com/oral-proficiency-interview-by-computer-opic