The principle of Proportionality requires that procedures followed for awarding a contract must be proportionate to the value of the contracts; this generally means that the higher the value the higher the more demanding the procedures.
In order to respect the principle of proportionality internal rules and procedures have to be established having due regard to the amount of the contract and taking into account the overall costs of the procurement procedure versus the difficulty and risk associated with the contract. Clearly some lower-value contracts may still involve great risk hence adopting more stringent measures may be prudent and justified.
Generally speaking, however, the procurement rules should develop a system of segregation of procurement functions with clear demarcations of authority and responsibility. Such delegations should reduce administrative bottlenecks and provide increased responsiveness by locating decision making authority nearer to the activity. Delegations of procurement authority should include a clear reference to maximum amounts of individual contracts and a supervisory mechanism to confirm that the correct procedures have been followed. The identification and segregation of procurement functions should include clear job descriptions for the fulfilment of the procurement of specific supplies, such as medicines and food, which require adequate resources with the appropriate technical qualifications in the organisation. Individuals holding this function shall be accountable for their acts or omissions and liable in case of negligence or misconduct.