The committee may authorize the establishment of additional positions of the kind to which this chapter applies, on a permanent basis or on a temporary basis of not to exceed six months' duration, whenever, in the judgment of the committee, such action is warranted in the interests of the orderly and efficient operation of the House of Representatives. The compensation of each such position may be paid out of the applicable accounts of the House of Representatives until otherwise provided by law. An additional position of the kind to which this chapter applies shall not be established without authorization of the committee.