4.5.The organization referred to in section 4 must take steps to discuss, with any management body designated pursuant to the Regulation respecting the development, implementation and financial support of a deposit-refund system for certain containers (chapter Q-2, r. 16.1) or the Regulation respecting a system of selective collection of certain residual materials (chapter Q-2, r. 46.01) and with any organization referred to in subparagraph 7 of the first paragraph of section 53.30 of the Environment Quality Act (chapter Q-2), ways to optimize the use of their resources.