Final answer:
Restricted activities in civil service positions generally require specific, specialized experience and education found in grades GS-13 through GS-15, the highest paid levels that reflect ascending responsibilities and expertise.
Step-by-step explanation:
The level of authorization which restricted activities are acquired through experience, on-the-job education, or post-basic education aligns with the standards, skills, and experiences required for civil service positions. Depending on the complexity of the job and the level of responsibility involved, different grades and salary ranges exist.
For positions that fall under grades GS-3 through GS-7 and GS-8 through GS-12, a certain level of education and experience is required, reflecting intermediate responsibilities and higher pay relative to entry-level positions. However, for grades GS-13 through GS-15, which offer the highest pay, specific, specialized experience and education are mandatory.
With satisfactory performance, civil servants have the opportunity to progress through the various levels of their career field over time, moving up through the grades and expanding their authorization for more complex, restricted activities.