Description: This section, § 404.112, outlines the requirements for employees of private nonprofit organizations to be considered fully insured under Social Security. If an employee is age 55 or over on January 1, 1984, and meets the specified requirements, they will be considered fully insured. The number of quarters of coverage (QCs) required varies based on the employee’s age on January 1, 1984, and the number of QCs acquired after December 31, 1983. This information is crucial for individuals who work for private nonprofit organizations and need to understand their Social Security benefits.