Plan the basics (4–6 weeks out)

Confirm you're allowed on the siteIf it's private property, determine if the area is public or private property. Make sure you obtain written permission to host your event at that location.
Set clear goals for the dayDecide if you're doing litter pickup, planting, or painting — draft specific goals for your cleanup, whether you're focusing on picking up litter, removing invasive species, or beautifying a public space, since having clear objectives will help mobilize volunteers.
Pick a date and lock in a rain datePlan at least one month in advance and have a rain date.
Name one point person to run the dayHave a designated group leader.
Loop in the city early if you're working on public land if public landInvite representatives of your local municipal government, police, public works crews, and the local fire department in your brainstorming sessions.
Register or permit the event with your city if required if city requires registrationSome cities' programs, like Baltimore's, only offer help with a formal request — the Solid Waste Clean-up request refers to smaller community cleanups with fewer than 20 participants; residents who register can borrow tools and will receive gloves, bags, and pickers.
Arrange post-event trash pickup before the day arrivesRegistered cleanups often get logistical support (suggestions on where, community connections, and post-event trash collection) — without this arranged in advance, you may be stuck hauling filled bags home yourself.

Recruit and supply (2–4 weeks out)

Recruit volunteers through several channelsContact your neighborhood association, local schools, businesses, and churches; talk to your neighbors, and post details on NextDoor.
Ask a local business to sponsor or donate supplies if seeking sponsorshipLocal businesses can publicize the cleanup, encourage employees to participate, and donate supplies.
Check if a Keep America Beautiful affiliate loans gear for freeMany affiliates loan out litter collection supplies year-round at no cost, including bags, gloves, and safety vests.
Gather the standard supply kit: gloves, trash bags, recycling bags, pickup sticks, and a first aid kitOne affiliate's standard loan includes gloves, trash bags, recycling bags, yard waste bags, first aid kit(s), hand sanitizer, bug spray, sunblock, litter pickup sticks.
Get safety vests for anyone near trafficIf you're walking along areas with a lot of car or bike traffic, be sure to wear a safety vest.
Promote the event on social media and neighborhood channelsCreate event pages on platforms like Facebook, share posts on neighborhood groups, and use hashtags related to your community clean-up initiative.
Assign an adult to each group of minors if kids attendingSend an adult with each group of minors.

Ban handling of hazardous itemsDo not handle hazardous materials such as gasoline, syringes, and batteries. If someone spots a needle, have them flag an adult leader instead of touching it — discarded needles carry real infection risk, and even brief community cleanups have turned up over a hundred in a few hours.
Set a hard stop at daylightDon't volunteer past daylight hours.
Assign someone to check storm drains if near streetsBe mindful of storm drains as you're doing your cleanup, and be sure to remove litter and debris in and around them.
Decide where filled bags will be stagedFor pickup, away from traffic and out of direct sun.

Run a short safety briefing before people spread outCover the hazardous-materials rule, traffic awareness, and where the first aid kit is.
Hand out supplies and split volunteers into zonesSo effort isn't duplicated.
Keep a sign-in table visible for latecomers and for your final headcount
Take photos as you goBoth for your report and to promote next time.
Stage filled bags at the agreed pickup point as they're finishedRather than leaving them scattered.
Pair the work with a social momentCoordinate your cleanup with a social opportunity, such as a picnic potluck and games at the park after the service event.

Confirm the bags were actually collected if arranged city pickupDon't assume it happened; check.
Report your results if you registered with a programStatewide programs exist specifically because communities are asked to organize and conduct local cleanups — recruit volunteers, promote your event, and report your results for inclusion in statewide and national cleanup totals.
Thank volunteers and share photos and results with the neighborhoodTo build momentum for next time.
Jot down what worked and what didn't while it's freshSo the next organizer — maybe you — isn't starting from zero.