(83)The performance of effective and efficient official controls and other official activities, and ultimately the safety and health of humans, animals and plants, and the protection of the environment, also depends on the availability to the control authorities of well trained staff possessing an appropriate knowledge of all the matters relevant for the correct application of Union legislation. Appropriate and dedicated training should be provided by the Commission to promote a uniform approach to official controls and other official activities by the competent authorities. To promote the knowledge of Union agri-food chain legislation and requirements in third countries, such training should also be addressed to staff of the competent authorities in third countries. In the latter case, the training activities should be designed to take into account the specific needs of developing countries, to support their controls and enforcement actions so that they can meet the requirements applicable to import of animals and goods into the Union.