You can only apply for one at a time, not both concurrently. Please do not submit more than one application. However, if you mark “Yes” in Question 26b (only visible if you are applying for a CIR position), you will be given the option to be considered as an ALT, IF AND ONLY IF
1) there are more qualified CIR applicants than CIR positions available;
2) you are not offered a CIR position but you meet all eligibility requirements for the CIR position, including Japanese fluency; AND
3) are eligible to be an ALT by having sufficient ALT-related experience