 Legislation passed through the Parliament Act , without the consent of the Lords , is still considered primary legislation . The importance of this was highlighted Jackson v Attorney General , where the legality of the Parliament Act 1949 was questioned . The challenge asserted foremost that the 1949 Act was delegated rather than primary legislation , and that the 1911 Act had delegated power to the Commons . If this were the case , then the Commons could not <unk> itself through the 1949 Act without direct permission from the Lords . Since it was passed under the 1911 Act , it had never received the required consent of the Lords . However , the 1949 Act was found to be legal . The 1911 Act , it was concluded , was not primarily about <unk> the Commons , but rather to restrict the ability of the Lords to affect legislation . This ruling also means that efforts to abolish the House of Lords ( a major constitutional change ) using the Act could be successful , although the issue was not directly addressed in the ruling . 
