Straight from the Department of Labor’s site:
Wage and Hour Division (WHD)
Information on FMLA Final Rule Effective Date
Several of the changes to the FMLA regulations made in this Final Rule, including military caregiver leave for a veteran, qualifying exigency leave for parental care, and the special leave calculation method for flight crew employees, will not be effective until the effective date of the Final Rule on March 8, 2013. As the Department noted in the preamble to the Notice of Proposed Rulemaking, however, some of the provisions of the National Defense Authorization Act for Fiscal Year 2010 and the Airline Flight Crew Technical Corrections Act, such as the expansion of qualifying exigency leave to families of members of the Regular Armed Forces and the special eligibility hours of service requirement for flight crew employees, were effective as of the enactment date of those statutes. 77 FR 8962 (Feb. 15, 2012).
And the new poster is available to download for free here: http://www.dol.gov/whd/regs/compliance/posters/fmlaen.pdf