Since its inception, Vested Interest in K9s has provided more than 6,513 vests valued at $6.9 million to K-9s in all 50 states, made possible by private and corporate donations. The program is open to U.S. dogs at least 20 months old and actively employed and certified with law enforcement or related agencies. “We are grateful to Vested Interest in K9s Inc. and to Gayle and Ron Althardt for their generosity and commitment to protecting law enforcement K-9s. Vested Interest in K9s accepts tax-deductible contributions in any amount, while a single donation of $1,050 will sponsor one vest. Vested Interest in K9s Inc. provides information, lists events and accepts donations at vik9s.org, or P.O.