The symposium, sponsored by ASTM Committee G-3 on Weathering and Durability, will focus on advances and innovations in durability testing, characterization and measurement of critical exposure stresses, and advances in methods to detect changes in critical material properties more rapidly. The event’s three sessions will feature the presentation of 13 technical papers. For more information, including a program booklet that contains registration and hotel information, contact Tim Brooke, ASTM, 100 Barr Harbor Dr., West Conshohocken, PA 19428-2959; phone 610/832.9729; e-mail tbrooke@astm.org.