We require full observance by all our suppliers of legislation and regulations to protect the rights of workers used to provide goods and services, which in particular means observation of national trade union agreements for the sector to which they belong and of pension, accident prevention and insurance legislation along with specifi c legislation on health and safety. Supplies which are not regular or for small amounts, and considered not strategic and which do not carry a high operational risk are regulated by the general conditions of a standard contract, while specifi c contracts are drawn up for recurring, strategic supplies, which carry high operational risk or which are for large amounts.