effective date
(1) Standards.— (A) Definition of effective date .— In this paragraph (other than subparagraph (D)), the term “effective date” means, with respect to each type of lamp specified in a table contained in subparagraph (B), the last day of the period of months corresponding to that type of lamp (as specified in the table) that follows October 24, 1992 . (B) Minimum standards .— Each of the following general service fluorescent lamps and incandescent reflector lamps manufactured after the effective date specified in the tables contained in this paragraph shall meet or exceed the following lamp efficacy and CRI standards: FLUORESCENT LAMPS Lamp Type Nominal Lamp Wattage Minimum CRI Minimum Average Lamp Efficacy (LPW) Effective Date (Period of Months) 4-foot medium bi-pin >35 W 69 75.0 36 ≤35 W 45 75.0 36 2-foot U-shaped >35 W 69 68.0 36 ≤35 W 45 64.0 36 8-foot slimline 65 W 69 80.0 18 ≤65 W 45 80.0 18 8-foot high output >100 W 69 80.0 18 ≤100 W 45 80.0 18 INCANDESCENT REFLECTOR LAMPS Nominal Lamp Wattage Minimum Average Lamp Efficacy (LPW) Effective Date (Period of Months) 40–50 10.5 36 51–66 11.0 36 67–85 12.5 36 86–115 14.0 36 116–155 14.5 36 156–205 15.0 36 (C) Exemptions .— The standards specified in subparagraph (B) shall not apply to the following types of incandescent reflector lamps: (i) Lamps rated at 50 watts or less that are ER30, BR30, BR40, or ER40 lamps. (ii) Lamps rated at 65 watts that are BR30, BR40, or ER40 lamps. (iii) R20 incandescent reflector lamps rated 45 watts or less. (D) Effective dates.— (i) ER, br, and bpar lamps .— The standards specified in subparagraph (B) shall apply with respect to ER incandescent reflector lamps, BR incandescent reflector lamps, BPAR incandescent reflector lamps, and similar bulb shapes on and after January 1, 2008 . (ii) Lamps between 2.25–2.75 inches in diameter .— The standards specified in subparagraph (B) shall apply with respect to incandescent reflector lamps with a diameter of more than 2.25 inches, but not more than 2.75 inches, on and after the later of January 1, 2008 , or the date that is 180 days after December 19, 2007 .