; and (B) the results of a pilot program conducted in 2007 under section 4022 of the Transportation Equity Act of the 21st Century ( Public Law 105–178 ), to assess the feasibility, costs, safety impacts, and benefits of such a system, and to assess methods for efficient exchange of driver safety data from existing State systems. 3. State implementation (a) Implementation Not later than 2 years after the Secretary has issued a final regulation requiring the implementation of a national employer notification service, each State shall use such service to notify employers with a report described in section 2(a). (b) Enforcement After the 2-year period described in subsection (a), the Secretary shall ensure that the national employer notification service described in this section is included as part of the requirements and standards of the commercial driver license program, including the consequences of noncompliance, set forth in part 384 of title 49, Code of Federal Regulations. (c) Employer compliance and allowable grant cost Included in developing the final regulation under section 2(a), the Secretary shall— (1) require any employer who has 1 or more employees who holds a commercial driver’s license with a school bus endorsement, pursuant to section 383.123 of title 49, Code of Federal Regulations, to participate in the employer notification service