In general, to be eligible an employee must have worked for an employer for at least 12 months, meet the hours of service requirement in the 12 months preceding the leave, and work at a site with at least 50 employees within 75 miles. A fully completed Form WH-381 provides employees with the information required by 29 C.F.R. § 825.300(b), which must be provided within five business days of the employee notifying the employer of the need for FMLA leave. Part B provides employees with information regarding their rights and responsibilities for taking FMLA leave, as required by 29 C.F.R. § 825.300(b), (c).