How easy is it to switch majors within the college of Engineering at CMU?

Hi! SO I’m not 100% sure which engineering major I want to pursue, chemical or biomedical E. I was wondering if at CMU you are accepted to that specific engineering major, or just the college of engineering as a whole and then you can declare your major later. If you are specifically accepted into your major, which major is easier to get into, Chem E or Biomedical E?
Thanks.

You declare your major at the end of first year:

“Engineering courses are required in the first year, giving students an opportunity to familiarize themselves with a discipline before choosing a major.”

https://engineering.cmu.edu/education/undergraduate-programs/curriculum/index.html

“Since students in CIT do not select a major until the end of the first year, all first year students share a common experience consisting of introductory courses in the engineering majors (one each semester), calculus, physics, other science courses which compliment specific introductory engineering courses, and courses in the College of Humanities and Social Sciences (General Education). This curriculum helps make an informed decision about a final major.”

"http://coursecatalog.web.cmu.edu/collegeofengineering/#firstyearforengineeringstudentstext

You should read the BME website at CMU. BME is unique as it is only offered as an ‘additional’ major. To major in BME you must have a primary major in one of the other engineering majors first. you take all the classes for the first major and 7 or 8 extra classes for BME that are mostly aligned with your primary.