The most visible signs yet of Lawrence’s pending curbside recycling program will start showing up on Monday.

Crews on Monday will begin delivering the blue, plastic recycling carts that households will use for the service. The city estimates that delivery of the 24,000 carts will last through mid-October. The recycling service is scheduled to begin collections on the week of Oct. 21.

What’s allowed in the cart? Glass, magazines, chipboard cartons, newsprint, paperback books, corrugated cardboard, tin, steel and aluminum food containers and plastic containers with recycling symbols 1-7. For a complete list of what’s acceptable, see the city’s website at http://www.lawrenceks.org/swm/recycling_collection.