Nikii Davis, from Portland, packs a year’s supply of fireworks at Blackjack Fireworks, on the first day of sales in Washington, Saturday, June 28, 2008. She spent $130.00. (The Columbian/ Steven Lane) As Independence Day draws close, folks across Vancouver get ready to draw their battle lines over what’s become one of the community’s most incendiary topics: fireworks.Some look at it as a day to batten down the hatches, get Fido some tranquilizers and keep the garden hose at the ready to extinguish wayward missiles. Others stock up at local stands, toasting their freedoms with awe-inducing displays and parties with friends.Either way, the day’s rituals have become tradition.But those traditions could change, if the Vancouver City Council approves a new ordinance that would ban many types of fireworks and instead move to a “safe-and-sane” policy that would permit only the type of fireworks sold in Portland and the rest of Oregon. The council is expected to take up the topic Monday, and again for a public hearing on June 18.Roman candles and mortars would be banned, as would anything that travels more than 12 inches vertically from the source of ignition or more than 15 feet horizontally. Sparklers, base and cone fountains, ground blooms and smoke devices will remain kosher.The change would affect only activities within city limits; the Clark County commissioners have not indicated they are interested in a change. The change would also not take effect until 2013.