; 2104(e)) . 3. Exemptions Section 4 of the Worker Adjustment and Retraining Notification Act ( 29 U.S.C. 2103 ) is amended to read as follows: 4. Exemptions This Act shall not apply to a plant closing or mass layoff if the closing is of a temporary facility or the closing or layoff is the result of the completion of a particular project or undertaking, and the affected employees were hired with the understanding that their employment was limited to the duration of the facility or the project or undertaking. . 4. Administration and enforcement of requirements Section 5 of the Worker Adjustment and Retraining Notification Act ( 29 U.S.C. 2104 ) is amended— (1) in subsection (a)— (A) in paragraph (1)— (i) in subparagraph (A)— (I) in the matter preceding clause (i), by striking each day and inserting each calendar day ; and (II) in clause (ii), by striking and after the semicolon; (ii) in subparagraph (B), by striking the period at the end and inserting ; and ; (iii) by inserting after subparagraph (B) the following: (C) liquidated damages in an amount equal to 30 days of back pay, at the rate of compensation calculated under subparagraph (A). ; and (iv) in the flush text following subparagraph (C) (as added by clause (iii)), by striking 60 days and inserting 90 days ; (B) in paragraph (2)(A), by inserting , which begins on the date of the employment loss after the violation ; (C) in paragraph (3), by inserting the Secretary, a State, or before a unit of local government ; (D) in paragraph (4)— (i) by striking which has violated this Act and inserting that has violated the provisions of section 3 with respect to the Secretary, a State, or a local government ; and (ii) by striking reduce the amount of the liability or penalty provided for in this section and inserting reduce the amount of the penalty under paragraph (3)