At its peak, how many job titles did the DOT list?

The Dictionary of Occupational Titles (DOT) served as a key reference for job classification and descriptions in the U.S. labor market, listing a comprehensive range of job titles. At its peak, the DOT is noted for including approximately 10,000 job titles. This extensive coverage allowed it to be a vital resource for employment counseling, providing detailed insights into various occupations, their requirements, and responsibilities. The figure reflects the attempt to catalog a diverse array of occupations within the economy, making it useful for both job seekers and professionals in career development. This level of detail exemplifies the DOT's significance in career guidance and workforce planning during its time of use.