Per Curiam.
We find that there was unreasonable delay as a matter of law in the Office of Rent Control's refusal, for a period of over 15 months, to process the landlords' applications for electrical exclusion decrease orders. It is offensive to one's sense of fairness for these landlords, having timely filed the necessary applications and engaged in a completely proper course of conduct under the pre-existing regulation, to be denied the benefit of the regulation then extant. Under the facts of these cases, the petitioners were entitled to reasonably prompt processing of their applications. The agency's arbitrary decision to impose a moratorium on applications of this nature until it had prepared and promulgated a new regulation should not work to the detriment of these petitioners (see Matter of Pokoik v Silsdorf, 40 N.Y.2d 769, 773; Matter of Parkchester Apts. Co. v Lefkowitz, 51 A.D.2d 277, 281, affd 41 N.Y.2d 987). Even in the absence of bad faith, administrative procrastination of this magnitude, be it negligent or willful, without excuse or justification, affords a basis for applying the pre-existing regulation to the applications (see Matter of Our Lady of Good Counsel R.C. Church School v Ball, 45 A.D.2d 66, affd 38 N.Y.2d 780; cf. 1 Anderson, N Y Zoning Law and Practice, § 6.17, p 196).
Accordingly, in each of these cases the order of the Appellate Division should be reversed.
Chief Judge BREITEL and Judges JASEN, GABRIELLI, JONES and WACHTLER concur in Per Curiam opinion; Judges FUCHSBERG and COOKE dissent and vote to affirm for reasons stated in the opinion by Mr. Justice VINCENT A. LUPIANO at the Appellate Division ( 54 A.D.2d 423).
In each case: Order reversed, with costs, and the judgment of Supreme Court, New York County, reinstated.