 In 2012, an updated FieldTurf surface was installed and certified by FIFA with a 2-star quality rating, the highest possible rating.If an MLS rule change requires natural grass playing surfaces, the field will be permanently replaced with natural grass.A new turf surface, based on the Revolution 360 brand developed by FieldTurf, was installed in early 2016 as part of the extended lease after noticeable wear on the former surface.