Ind. Code § 28-1-25-3
To permit and encourage financial institutions and investment type industrial loan and investment companies of this state to make loans secured or guaranteed or upon which there is a commitment or agreement to take over or purchase in whole or part by the United States or an agency thereof, as described in section 1 of this chapter, on terms, provisions, and conditions equal to those applicable from time to time to national banking associations and to federal savings and loan associations, as the case may be, the department of financial institutions is hereby authorized and empowered to supplement sections 1 and 2 of this chapter by making and promulgating rules with respect to the nature, priority, amount, location, or form of security for such loans prescribing or limiting the period for which such loans or advances for credit may be made, prescribing any ratio between the amount of such loans and the appraised value of security, and requiring periodical reduction of the principal of any loan which any such financial institution of this state may make. Such rules shall not restrict the provisions of sections 1 and 2 of this chapter.
IC 28-1-25-3