The constitution does not specify requirements for candidacy for the Assembly of Experts, leaving the Assembly itself to put limits on who may run for membership. The assembly has passed laws to require all its members be experts in fiqh (Islamic jurisprudence), authorizing the Guardian Council to vet candidates for ijtihad proficiency using written and oral examinations. This law was challenged by the reformists, and their 2006 election campaign included changing this law to allow non-clerics into the assembly, and reforming the law that allows Guardian Council to vet candidates. Women (Mujtahidehs) are theoretically eligible to run for the Assembly of Experts and in 1998 nine women submitted their candidacy. The Guardian Council rejected them, arguing that they lacked qualifications in fiqh.