In The Unicode Standard, Adlam Script implementation is discussed in  Chapter 19 Africa.

The Adlam script was encoded in The Unicode Standard version 9.0. The script is now encoded in the following block:

BlocksCharacter RangeAdded in Unicode VersionUnicode chart
Adlam 1E900..1E95F 9.0  U1E900.pdf

A number of proposals for its inclusion have been submitted to the Unicode Technical Committee and WG2:

2013-10-28 Preliminary proposal for encoding the Adlam script in the SMP of the UCS — Michael Everson ( WG2 N4488,  L2/13-191)

2014-09-23 Proposal for encoding the Adlam script in the SMP of the UCS — Michael Everson ( WG2 N4628,  L2/14-219)