Laying of rules requires tabling of subordinate instruments before the legislature, enabling modification or disallowance with saved prior validity. Rules, regulations and notifications under the Act must be laid before the State Legislature for a cumulative thirty-day period (which may span one or more sessions). If the Legislature, before the end of the immediately following session, agrees to modify or disallow the instrument, it will thereafter operate only as modified or be of no effect; such modification or annulment does not affect the validity of actions previously taken under the instrument.