Such improvements are then mandated to retrofit existing facilities and future design. ISO16813 is applicable to new construction and the retrofit of existing buildings. In the automotive aftermarket you can also retrofit overdrive to existing early transmissions. A renovation of the lagoon, walkways, and a seismic retrofit were completed in early 2009. There is ongoing construction to retrofit the stadium. Kinetoscope owners were also offered kits with which to retrofit their equipment. This part was rebuilt as part of the Bay Bridge retrofit project. In December 2016, the GISSV closed the building, due to unmet seismic retrofit needs. Boeing also offered it as a retrofit for older 737NG aircraft. After a $20 million seismic retrofit completed in 1996, the bridge remains functionally obsolete. Partial filter technology is popular for retrofit. In 2009 Garmin introduced the Garmin G500 as a retrofit glass cockpit. The battery retrofit option is not available in the U.S. Engineering work to retrofit these Vulcans had begun on 9 April. Delays were involved due to design complications resulting from the NiMH pack retrofit.