If you mean that you want to use it either as one of the required or recommended SAT subject tests for admission at colleges that do require or recommend them, then be aware high ranked colleges have specifically mentioned that they are not impressed with high SAT language scores submitted by native speakers of the language.
Nevertheless, the test may still be usable for what is required or useable, or for other purpoes, in that some colleges (a) accept good scores in SAT language tests to meet the foreign language requirement for admission form those who did not actually take foreign language in high school; (b) have a college language requirement and may use the score for placement at the college level or even as a basis to avoid having to take,language on the college level; © may give some college credit for a high score.