RCW 5.28.050
Form of affirmation.
Any person who has conscientious scruples against taking an oath, may make his or her solemn affirmation, by assenting, when addressed, in the following manner: "You do solemnly affirm that," etc., as in RCW 5.28.020.
[ 2011 c 336 § 135; 2 H. C. § 1697; 1869 p 379 § 5; RRS § 1268.]