OBS_VALUE: Article 8 stipulates the treshold values for the implementation of Article 63. Accordingly, If the tender is below the thresholds stipulated under Article 8, the contracting entities can limit the participation to domestic bidders. Also, if the tender is above such tresholds, a price advantage up to 15% can be granted for domestic bidders in tendering services and construction.  Nonetheless, domestic suppliers cannot benefit from the price advantage if they participate in bidding by forming a joint venture with foreign bidders. Finally, a compulsory domestic price advantage up to 15% for medium and high technology products including the delivery of software is established.