1. Member States shall require IORPs registered or authorised in their territories to invest in accordance with the 'prudent person' rule and in particular in accordance with the following rules:

(a) the assets shall be invested in the best long-term interests of members and beneficiaries as a whole. In the case of a potential conflict of interest, an IORP, or the entity which manages its portfolio, shall ensure that the investment is made in the sole interest of members and beneficiaries;

(b) within the prudent person rule, Member States shall allow IORPs to take into account the potential long-term impact of investment decisions on environmental, social, and governance factors;

(c) the assets shall be invested in such a manner as to ensure the security, quality, liquidity and profitability of the portfolio as a whole;

(d) the assets shall be predominantly invested on regulated markets. Investment in assets which are not admitted to trading on a regulated financial market must in any event be kept to prudent levels;