See also Section 3 (Faculty Regulations), Subsections 3.4A (Program Requirements - Major Programs) and 3.5B (Course Selection - Introductory Courses).

3 units - Astrophysics 305

6 units - Physics 227 and 229

3 units - Mathematics 211 or 213

3 units - Mathematics 265^{1} or 275 or 249

3 units - Mathematics 267^{1} or 277

3 units - Chemistry 201 or 211 or 209

3 units - Computer Science 217 or Data Science 211

9 units - Astrophysics 307, 401, 403

24 units - Physics 341, 343, 355, 375, 381, 443, 449 and 455

6 units - Two of Physics 481, Astrophysics 503 or Astrophysics 509

9 units - 400- or 500-level Physics option

3 units - Mathematics 311 or 313

6 units – Mathematics 367^{1} and 376^{1}; or Mathematics 375 and 377

3 units – Physics 435 or Mathematics 433

3 units - Science options

18 units - Breadth Requirement: Options from faculties other than the Faculty of Science (check Table I in 3.4 Program Requirements for ineligible courses). Of these 18 units, at least 6 units must be from the Faculty of Arts. Science 311 may be counted among the 18 units from other faculties.

15 units - Options

^{1}The recommended sequence for Mathematics courses in Physics and Astronomy is Mathematics 265, 267, 376, and 367.

**Note**: Students can a) have obtained an "A-" or better in Physics 211/221 or b) have completed both Physics 211/221 and 321 in order to satisfy their program requirement of Physics 227. Students who have completed either of these options must visit the Undergraduate Science Centre (SB 149) to have this substitution applied to their student record.