Stay up to date with notifications from The IndependentNotifications can be managed in browser preferences.AllNewsSportCultureLifestyleThe Met Office has warned that May's hottest temperature record could be broken again on Tuesday. Amber and yellow heat health alerts in place across several English regions have been extended until 5pm on Thursday. While there is no legal maximum working temperature in the UK, employers are legally required to ensure “reasonable” temperatures for staff, according to the Advisory, Conciliation and Arbitration Service (Acas).The service notes that employers should conduct “health and safety risk assessments” for extreme temperatures and reduce any identified risks. The advisory Climate Change Committee (CCC) has previously recommended mandatory maximum temperature regulations for workers to safeguard against heatwaves. In fullUK urgently needs maximum working temperatures to survive extreme heat, experts warnThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in