From the Sporting Code:

4.2.1 Declaration content
a. Date of flight.
b. Name of the pilot-in-command, and the flight crew if any.
c. Glider type, and its registration or serial number or unique NAC-assigned contest number.
d. The make, model and serial number of the FR used (as recorded in the .igc file for the flight). For any barograph or PR used, the make, model, and serial number as verified by the OO before flight.
Additional content for distance and speed flights:
e. Way points and, for a closed course, the sequence to be flown. When any way point is declared using a word description, abbreviation, or code with coordinates, the coordinates are definitive. When only a word description, abbreviation, or code is used to declare a way point, its coordinates must be taken from a published source designated by the NAC.

Further:

4.2 DECLARATION REQUIREMENTS
All flights require a pre-flight declaration except straight distance badge flights using only a barograph for verification. Only the most recent declaration is the valid one.
a. For record flights, the declaration must be input to a FR and appear in its .igc file.
b. For badge flights, the declaration shall be input to a FR and appear in its .igc file or be written, either on a single sheet of paper or transmitted via the internet. If the latter, the pilot shall e-mail the OO or input to a NAC-approved website. The declaration time shall be the time that the e-mail is received by the OO or the website. See Annex C-3.5 for notes on internet-based declarations.
c. For any straight distance flight claimed from release to the landing or to a finish fix, the relevant details of 4.2.1 shall be certified by the OO..
d. If the pilot or glider information is omitted or incorrect in the FR declaration for a Silver or Gold badge flight, the OO certificate required by 5.2.4 shall take precedence.
e. When more than one FR is used, they must have identical flight task data input, and if one fails, the other becomes the direct replacement.
f. A written declaration shall be retained by the OO and submitted with other claim materials.

You can use the online tool at http://www.segelflug-software.de/flarmcfg/ to generate a declaration which is input to your PowerFLARM by the resulting flarmcfg.txt file. There is also a stand-alone tool also available (for Windows) - http://www.segelflug-software.de/prod_flarmcfgtool.html - you can change the waypoints file for your local ones.

2D