The Commissioner of Revenue Services may prescribe regulations and make rulings, not inconsistent with law, to carry into effect the provisions of chapters 210, 211 and 212 and this chapter, which regulations or rulings, when reasonably designed to carry out the intent and purpose of said chapters, shall be prima facie evidence of its proper interpretation. The commissioner shall, from time to time, publish for distribution any regulations prescribed hereunder including any of such rulings which appear to him to be of general interest. The commissioner may prescribe or furnish the form of any return required under said chapters and may require that every such return shall set forth any and all information necessary or desirable in order to determine the amount of any tax payable thereunder.