Final answer:
The requirement that an applicant for naturalization should have a clean criminal record is called 'good moral character' and is a part of the naturalization process.
Step-by-step explanation:
The requirement that indicates an applicant for naturalization should have a clean criminal record is called 'good moral character'.
Good moral character refers to an individual's behavior and actions, including obeying laws and being honest, responsible, and respectful.
During the naturalization process, the U.S. Citizenship and Immigration Services (USCIS) thoroughly examines the applicant's criminal history to determine if they meet the requirement.
Learn more about Naturalization and good moral character