• The American Liver Foundation is sponsoring a kickoff rally for its upcoming Three Rivers Liver Walk from 6 to 9 tonight at the Hard Rock Cafe, Station Square. Call 412-434-7077.

• St. Barnabas Charities is collecting used household items for its annual treasure sale from 1 to 4 p.m. March 31 at 76 Camp Road, Valencia. Clothing, shoes, books, bedding equipment and computers are not being accepted. Call 724-443-0800 ext. 5328.

• The Village of St. Barnabas, 5850 Meridian Road, Richland, is hosting a program, "Advances in Surgical and Conservative Knee Treatment," at 1:30 p.m. today in Village Hall in Hilltop Hall as part of its monthly "Docs Talks" series. Speaker is Dr. William E. Abraham. Call 724-443-7231.

• Asbury Heights, 700 Bower Hill Road, Mt. Lebanon, is hosting a program, "Coping with Age-Related Eye Diseases," at 1:30 p.m. April 3. Speaker is Mary Ann Englert of Blind & Vision Rehabilitation Serves of Pittsburgh. To register, call 1-877-405-7477.

• Jefferson Regional Medical Center is sponsoring "Demystifying MRSA: Understanding the Antibiotic-Resistant Bacteria" from 5 to 7 p.m. April 3 in its James Bibro Pavilion as the last of its "Health for Her" series. The program is free, but registration is required and space is limited. Call 412-469-7100.

• Excela Health is offering an AARP driver safety program from 8:30 a.m. to 4:30 p.m. March 29 in conference room D of Westmoreland Hospital. The cost is $10. Call 1-877-771-1234.

• UPMC Passavant is offering the following classes:

Smoking cessation, seven weeks, 7 to 8:30 p.m. Mondays beginning March 31, Dining Room 2, lower level. Cost: $25, payable at the first session. To register, call 1-800-533-8762.

Diabetes education, 9 to 11:30 a.m. Wednesdays from April 2 through 23. Call 412-367-6887.

• The Southwestern Pennsylvania chapter of the American Red Cross is sponsoring the following safety classes at its Fayette County location, 108 Morgantown St., Uniontown. Call 724-438-2567.

Adult CPR with AED, 5:30 to 10 p.m. April 1. Cost: $30.

Adult standard first aid with CPR and AED, 5:30 to 10 p.m. April 1 and 5:30 to 9:30 p.m. April 2. Cost: $45. Must attend both nights.

First aid, 5:30 to 9:30 p.m. April 2. Cost: $30.

• ParentWISE is sponsoring a program, "Parenting Your Special Needs Child," from 7 to 8:30 p.m. Wednesdays from April 2 through May 21 at Latrobe Presbyterian Church, 428 Main St. Tuition is based on a sliding scale. Call 724-837-5410.

• UPMC Passavant is offering the following support groups for families of persons suffering from addiction at 7 p.m. Call 412-367-6643.

Wednesdays, Donor Hall, UPMC Passavant.

Thursdays, Garden Montessori School, 204 Commerce Park Drive, Cranberry.

• St. Clair Hospital is holding a Family Birth Center tour at 10 a.m. March 29. To register, call 412-942-5895.

• The Pennsylvania Department of Health is holding a public hearing on the Women, Infants and Children supplemental nutrition program from 10 a.m. to 3 p.m. April 2 in the Allegheny County Health Department's Natrona Heights office, 2418 Freeport Road, Harrison. Those interested in testifying should pre-register by calling 717-783-1289.

• The Pittsburgh Zoo & PPG Aquarium is sponsoring "Project Polar Bear," an environmental contest for youth ages 14 through 18 seeking ways to reduce greenhouse gases. Projects are to fit into four categories: "Power Down," "Buy Recycled," "Do It Better, Make It Better" and "Increase the Green to Suck Up CO2." The deadline is June 1. Projects must be completed by Dec. 31. Winners receive $500 and a day at Sea World San Diego. Visit www.pittsburghzoo.org or call 412-365-2538.