Section 17 of the Act of 1995 is hereby amended by the insertion after subsection (3) of the following subsection:
"(4) The supervisory authority shall maintain a register or registers of investment business firms of which it has been informed by a competent authority in another Member State under Articles 17 and 18 of the Council Directive No. 93/22/EEC of 10 May, 1993 on investment services in the securities field [O.J. No. L141, 11.06.1993.].".