As used in this chapter:

(1) "Entity" means animal care and control agencies as defined in RCW 16.52.011 and nonprofit humane societies, which have qualified under section 501 (c)(3) of the Internal Revenue Code.

(2) "Emergency care" as referred to in RCW 18.92.260 (1)(b) means an unexpected, serious occurrence or situation which urgently requires prompt action in order to prevent an animal's death or permanent injury, unless defined otherwise by local ordinance.

(3) "Low-income household" means a single person, family or unrelated persons living together whose adjusted family income is less than eighty percent of the median family income, adjusted for household size, for the county where the project is located (RCW 43.185A.010(5)).