Firecrackers, bottle rockets, missiles, and rockets are legal to possess and discharge on tribal lands ONLY. These items are illegal in Washington State and become illegal fireworks when possessed off tribal lands.
M-80’s and larger, dynamite and any improvised, homemade or altered explosive devices such as tennis balls or cherry bombs are illegal explosive devices. Persons in possession or using illegal explosive devices can be charged with a felony.
Sky lanterns are now allowed in Washington State when tethered (i.e. kite string or similar material). The tether must remain attached for the full duration of flight and the lantern material must be recovered and disposed of properly. Any fire started with a sky lantern (tethered or not) is subject to Reckless Burning laws and fire code violations which can amount to both civil fines and criminal charges.
Fireworks sales and discharge laws differ in each incorporated city in Whatcom County. This list developed by Washington State Patrol shows Whatcom County County/City information regarding Fireworks usage. For specific questions, please contact each respective city's fire official for information on fireworks within those jurisdictions.