(1) The director shall require the information required under RCW 15.58.060 and shall register the label or labeling for such pesticide if he or she determines that:

(a) Its composition is such as to warrant the proposed claims for it;

(b) Its labeling and other material required to be submitted comply with the requirements of this chapter;

(c) It will perform its intended function without unreasonable adverse effects on the environment;

(d) When used in accordance with widespread and commonly recognized practice it will not generally cause unreasonable adverse effects on the environment;

(e) In the case of any pesticide subject to section 24(c) of FIFRA, it meets (a), (b), (c), and (d) of this subsection and the following criteria:

(i) The proposed classification for general use, for restricted use, or for both is in conformity with section 3(d) of FIFRA;

(ii) A special local need exists.

(2) The director shall not make any lack of essentiality a criterion for denying registration of any pesticide.