The document establishes general principles for the execution of displacement piles which are installed in the ground without excavation or removal of material from the ground exept for limiting heave, vibration, removal of obstructions or to assist penetration. Piles are driven into the ground using impact, vibration, pressing, screwing or a combination of these methods. The material of displacement piles covered by this standard can be: steel, cast iron, concrete, timber, grout, combination of above.