According to the BC Council on Admissions & Transfer (BCCAT), articulation and course transferability should not hinge on the use of specific textbooks in a course.
Articulation is based on equivalency of content, skills, learning outcomes, topics, and competencies even though instructors may choose to use a textbook that covers the full range of learning outcomes of a course.
The guides, How to Articulate, The Sender’s Guide and The Receiver’s Guide (http://www.bccat.ca/articulation), discuss the parameters for articulation, but none mentions textbooks as an element in the decision-making process.