left breast and the "Spark" logo covering the back. Reportedly one of the main reasons the vest was reintroduced was that some customers had trouble identifying employees. In 2016, self-checkout associates, door greeters and customer service managers began wearing a yellow vest to be better seen by customers. By requiring employees to wear uniforms that are made up of standard "streetwear", Walmart is not required to purchase the uniforms or reimburse employees which are required in some states, as long as that clothing can be worn elsewhere. Businesses are only legally required to pay for branded shirts and pants or clothes that would be difficult to wear outside of work. Unlike many other retailers, Walmart does not charge slotting fees to suppliers for their products to appear in the store. Instead, it focuses on selling more-popular products and provides incentives for store managers to drop unpopular products. From 2006 to 2010, the company eliminated its layaway program. In 2011, the company revived its layaway program. Walmart introduced its Site-To-Store program in 2007, after testing the program since 2004 on a limited basis. The program allows walmart.com customers to buy goods online with a free shipping option, and have goods shipped to the nearest store for pickup. On September 15, 2017, Walmart announced that it would build a new headquarters in Bentonville to replace its current 1971 building and consolidate operations that have spread out to 20 different buildings throughout Bentonville. According to watchdog group Documented, in 2020 Walmart contributed $140,000 to the Rule of Law Defense Fund, a fund-raising arm of the Republican Attorneys General Association. Finance and governance For the fiscal year ending January 31, 2019, Walmart reported net income of on $514.405 billion of revenue. The company's international operations accounted for $120.824 billion, or 23.7 percent, of its $510.329 billion of sales. Walmart is the world's 29th-largest public corporation, according to the Forbes Global 2000 list, and the largest public corporation when ranked by revenue. Walmart is governed by an eleven-member board of directors elected annually by shareholders. Gregory B. Penner, son-in-law of S. Robson Walton and the grandson-in-law of Sam Walton, serves as chairman of the board. Doug McMillon serves as president and chief executive officer. Current members of the board are: Gregory B. Penner, chairman of the board of directors of Walmart Inc. and general partner of Madrone Capital Partners Cesar Conde, chairman of NBCUniversal International