Explaining Rule 40, US Olympic Committee chief marketing officer Lisa Baird said: "Commercial entities may not post about the Games on their corporate social media accounts. It states only approved Olympic sponsors can refer to what they call 'Olympic-related terms' between July 27 and August 24. "But a company that sells a sports drink certainly can't post something from the Games on their social media page or website. The Olympics has a long list of worldwide and official partners but Rule 40 will particularly apply to sporting brands such as adidas, Nike and Under Armour. Rule 40 has actually been relaxed since London 2012 but the strict laws surrounding sponsorship and social media pale into insignificance against the broader picture of this summer's Games.

Source: New Zealand Herald July 28, 2016 20:20 UTC