4. Legal or practical arrangements that, without expressly granting an exclusive right, aim at, or could reasonably be expected to lead to, a restricted availability for the re-use of documents by entities other than the third party participating in the arrangement, shall be made publicly available online at least two months before their coming into effect. The effect of such legal or practical arrangements on the availability of data for re-use shall be subject to regular reviews and shall, in any event, be reviewed every three years. The final terms of such arrangements shall be transparent and made publicly available online.