http://ozreport.com/docs/HGworldsLRAddendumSprogMeasurements_final.pdf

From the addendum to the rules:

3. All gliders must have their sprogs set to the certified settings of a recognized testing body (DHV, HGMA or BHPA) or to a manufacturer’s declared safe setting. Any glider with sprog settings which exceed either the certified settings by + or – 2 degrees or the manufacturer’s declared safe settings by 0.5 degree will be reported to the Safety Director.

6. Gliders will also be measured randomly during the competition. All subsequent measurements will be published. If a pilot is found to have flown with non-compliant settings when measured after a task, the Meet Director and Steward will be notified. The penalty for deliberate non-compliance will be 5% of the maximum available score for that task. In addition, the glider will be measured again the next day. If the sprogs are again found to be non-compliant, the pilot will not be allowed to fly the task (i.e. will receive no score).