**Biology Concentration.** The minimum requirements for a C1 in Biology are as follows:

6 units (1.0 full-course equivalent) - Biology 241 and 243

9 units (1.5 full-course equivalents) - Biology 311, 331, 371

3 units (0.5 full-course equivalent) - Biochemistry 393 or Biology 313

9 units (1.5 full-course equivalents) - Courses from the Field of Biological Sciences at the 300 level or higher

3 units (0.5 full-course equivalent) - Courses from the Field of Biological Sciences at the 400 level or higher

Note: Natural Sciences students are not permitted to take more than 6 units (1.0 full-course equivalent) from courses numbered 507 offered by the Department of Biological Sciences.

**Chemistry Concentration.** The minimum requirements for a C1 in Chemistry are as follows:

6 units (1.0 full-course equivalent) - Chemistry 201 or 211; and 203 or 213

12 units (2.0 full-course equivalents) - Chemistry 311, 331, 351; and 371 or 373

9 units (1.5 full-course equivalents) - Courses from the Field of Chemistry at the 300 level or higher

3 units (0.5 full-course equivalent) - Courses from the Field of Chemistry at the 400 level or higher

**Computer Science Concentration**^{1}. The minimum requirements for a C1 in Computer Science are as follows:

6 units (1.0 full-course equivalent) - One of the following three sets of courses:

3 units (0.5 full-course equivalent) - Computer Science 319 or 331

18 units (3.0 full-course equivalents) - Courses in the Field of Computer Science

3 units (0.5 full-course equivalent) - Courses in the Field of Computer Science at the 400 level or higher

^{1}Students interested in completing a C1 in Computer Science should complete Philosophy 279 in their first year.

**Energy Science Concentration.** The minimum requirements for a C1 in Energy Science are as follows:

3 units (0.5 full-course equivalent) - Chemistry 203 or 213

3 units (0.5 full-course equivalent) - Physics 211 or 221 or 227

3 units (0.5 full-course equivalent) - Physics 223 or 255

3 units (0.5 full-course equivalent) - Energy and Environment, Engineering 355

3 units (0.5 full-course equivalent) - Chemistry 321 or 425

15 units (2.5 full-course equivalents) - Chosen from energy science content: Science 317, 421, 423, 427, 531, 533, Physics 323, 325, or 397 (a maximum of 6 units (1.0 full-course equivalent) can be chosen from Physics 323, 325, 397)

**Note**: Energy Science students completing a Concentration Two in Physics will have the first-year Physics courses count toward both concentrations. No Physics courses beyond required first-year Physics courses can count toward both Energy Science and a Physics concentration. A maximum of 6 units (1.0 full-course equivalent) from Physics 323, 325 and 397 can be used towards completion of the Energy Sciences Concentration. Energy Science students completing a Concentration Two in Chemistry will have Chemistry 203 count toward both concentrations.

**Geoscience Concentration.** The minimum requirements for a C1 in Geoscience are as follows:

15 units (2.5 full-course equivalents) - Geology 201, 202 or 203, 343 or 341, 381, and Geophysics 351 or 355

12 units (2.0 full-course equivalents) - Courses in the Fields of Geology and/or Geophysics at the 300 or 400 levels^{1}

3 units (0.5 full-course equivalent) - Courses in the Fields of Geology and/or Geophysics at the 400 level or higher^{1}

^{1}Students pursuing a Geoscience concentration are free to mix and match appropriate Geology and Geophysics options. It is recommended that students intending to apply for admission into the Geology program (including the Petroleum Geology concentration) take Geology 313, 381, 323, 333 while students intending to apply for admission into the Geophysics program take Geophysics 351 or 359, 453, 457 and an additional Geology or Geophysics option. For more details, see the Geoscience Program Section of this Calendar.

**Mathematics Concentration.** The minimum requirements for a C1 in Mathematics are as follows:

3 units (0.5 full-course equivalent) - Mathematics 211 or 213

3 units (0.5 full-course equivalent) - Mathematics 249 or 265 or 275

3 units (0.5 full-course equivalent) - Mathematics 267 or 277

6 units (1.0 full-course equivalent) - Mathematics 311 or 313; and Statistics 321

3 units (0.5 full-course equivalent) - Mathematics 367 or 375

9 units (1.5 full-course equivalent) - Courses in the Field of General Mathematics.

3 units (0.5 full-course equivalent) - Courses in the Field of General Mathematics at the 400 level or higher

**Physics Concentration.** The minimum requirements for a C1 in Physics are as follows:

6 units (1.0 full-course equivalent) - Either Physics 211 or 221 and 321; or Physics 227 and 3 units (0.5 full-course equivalent) Physics option

6 units (1.0 full-course equivalent) - Either Physics 223 and 323; or 255 and 397

15 units (2.5 full-course equivalents) - Courses in the Field of Physics^{1} at the 300 level or higher

3 units (0.5 full-course equivalent) - Courses in the Field of Physics^{1} at the 400 level or higher

^{1}Students completing either a C1 or C2 in Physics may use courses in Astrophysics to satisfy requirements from the Field of Physics.