Informazioni Normative references Feb 04, 17:52 pm Hits: 979 HomeINFORMATIONNormative references Royal Decree 148/1931 R.D.Lgs. 148/1931 Law n. 689 of 11/24/1981 L. 689/81 Decree of the President of the Republic n. 753 of 11/07/1980 D.P.R. 753/80 Regional law n. 23 of 08/20/2007 Regional law n. 23 del 20/08/2007 Regional law n. 20 of 07/05/1997 Regional law n. 20 del 07/05/1997 Regional law n. 1 of 17/01/1984 Regional law n. 1 del 17/01/1984 Prev