Subjgrp 199. Educational and Vocational Training Services
- § 21.120 - Educational and vocational training services.
- § 21.122 - School course.
- § 21.123 - On-job course.
- § 21.124 - Combination course.
- § 21.126 - Farm cooperative course.
- § 21.128 - Independent study course.
- § 21.129 - Home study course.
- § 21.130 - Educational and vocational courses outside the United States.
- § 21.132 - Repetition of the course.
- § 21.134 - Limitation on flight training.