ED Decision 2020/022/R
UAS OPERATOR REGISTRATION NUMBER
(a) The unique UAS operator digital registration number that is issued by the Member States should consist of sixteen (16) alphanumerics in total, arranged as follows:
(1) the first three (3) alphanumerics (upper-case only) corresponding to the ISO 3166 Alpha‑3 code of the Member State of registration;
(2) followed by twelve (12) randomly generated characters that consist of alphanumerics (lower-case only); and
(3) one (1) character corresponding to the checksum that is generated in line with point (c).
(b) The Member States should randomly generate three (3) additional alphanumerics (lower-case only) called ‘secret digits’.
(c) The Member States should generate a checksum by applying the Luhn-mod-36 algorithm to the fifteen (15) alphanumerics that result from the concatenation, in the following order, of:
(1) the twelve (12) alphanumerics of the UAS operator registration number defined in point (a)(2); and
(2) the three (3) randomly generated ‘secret digits’ that are defined in point (b).
(d) For the Luhn-mod-36 algorithm, the mapping of the alphanumerics to the code-points should start with digits that are followed by lower-case letters, as shown below:
Alphanumeric |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
a |
b |
c |
d |
e |
f |
… |
z |
Code-point |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
… |
35 |
(e) At the time of registration, the Member State should provide the UAS operator with the full registration string that consists, in the following order, of:
(1) the UAS operator registration number as defined in point (a); and
(2) the three (3) randomly generated ‘secret digits’, separated by a hyphen ‘-’ (ASCII code [DEC] 45).
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