Authorizes the legislative authorities of any contiguous group of towns or cities all with a population of at least forty thousand and bordering the Columbia river to enter into an agreement under chapter 39.34 RCW (interlocal cooperation act) for the creation and operation of a public facilities district notwithstanding the fact that one or more of those towns or cities previously have formed one or more public facilities districts within the geographic boundaries of the additional public facilities district.

Authorizes a public facilities district created in section 1 (1)(e) of the act to provide in the agreement providing for its creation and operation, that the district must be governed by a board of directors appointed under section 1 (3)(b) or (c) of the act, or by a board of directors of not more than nine members who are also members of the legislative authorities or governing boards of the governmental entities creating that public facilities district or the public facilities districts, or both, previously formed by those governmental entities.

Prohibits a public facilities district formed under section 1 (1)(e) of the act from imposing a sales and use tax authorized in section 3 (2) of the act at a rate that exceeds two-tenths of one percent minus the rate of the highest tax authorized by section 3 (2) of the act that is imposed by any other public facilities district within its boundaries.