Chapter 1 of the Laws of 1983 vested in the superintendent broad authority to prescribe regulations governing loans secured by real estate made by banks, trust companies, savings banks and savings and loan associations. At the same time, chapter 1 deleted from the Banking Law certain rigid technical requirements, principally in the area of maximum loan-to-appraised value limitations, which had applied to such loans. This Part establishes certain prudential requirements and applies to all loans secured by real estate or cooperative apartment units, and to which the provisions of sections 103(4), 235(5-a), 235(6), 380(1) and 380(3) apply. The provisions of this Part do not apply to any loan with respect to which the superintendent has adopted regulations pursuant to either section 6-f of the Banking Law (alternative mortgage instruments) or sections 103(4-a), 235(6-a) and 380(4-a) of such law (junior mortgage authority).