Final answer:
The prohibited personnel practice that addresses improper hiring practices is the prohibition against discriminatory hiring practices, covered under Title VII of the Civil Rights Act of 1964.
Step-by-step explanation:
The prohibited personnel practice that addresses improper hiring practices based on agency officials hindering employment is the prohibition against discriminatory hiring practices. This practice is covered under Title VII of the Civil Rights Act of 1964, which makes it illegal for employers to discriminate against job applicants or employees based on their race, color, religion, sex, or national origin.
In the specific scenario described, where agency officials falsely rate subordinate employees as unsatisfactory to hinder their promotion, this would be considered discriminatory and a violation of the law. Employers cannot use false performance ratings or other tactics to intentionally prevent certain employees from accessing employment opportunities or promotions.
It is important for agencies and employers to adhere to the anti-discrimination laws and ensure fair hiring practices, treating all individuals equally and evaluating them based on their qualifications, skills, and performance.