They were originally written by Bill Wilson after the founding of the first twelve-step group, Alcoholics Anonymous (AA).
[1] Several of the tenets of what was to become AA's Twelve Traditions were first expressed in the foreword to the first edition of the Big Book of Alcoholics Anonymous in 1939.
"[1] Other groups replace the word alcoholic with the identifying characteristic of their fellowship, or otherwise rephrase it to have a similar meaning.
[5] The principle is based on the philosophy that those that share common physical cravings and mental obsessions can best understand and help those that are struggling with their specific addictions.
Certainly there is every good reason for interested AAs to join with "outside" groups, working on the narcotic problem, provided the Traditions of anonymity and of "no endorsements" are respected.