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

6 units - Biology 241 and 243

9 units - Biology 311, 331, 371

3 units - Biochemistry 393 or Biology 313

9 units - Courses from the Field of Biological Sciences at the 300 level or higher

3 units - 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 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 - Chemistry 201 or 211; and 203 or 213

12 units - Chemistry 311, 431, 351; and 371 or 373

9 units - Courses from the Field of Chemistry at the 300 level or higher

3 units - 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 - One of the following three sets of courses:

3 units – Computer Science 251

3 units - Computer Science 319 or 331

15 units - Courses in the Field of Computer Science

3 units - 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 - Chemistry 203 or 213

3 units - Physics 211 or 221 or 227

3 units - Physics 223 or 355

3 units - Energy and Environment, Engineering 355 or Science 317

3 units - Chemistry 321 or 425

15 units - Chosen from energy science content: Science 421, 423, 427, 431, 433, Physics 323 or 397

**Note**: Energy Science students completing a Concentration Two in Physics will have the Physics courses count toward both concentrations. No Physics courses beyond required Physics courses can count toward both Energy Science and a Physics 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 - Geology 201, 202, 343, 381, and Geophysics 351 or 355

12 units - Courses in the Fields of Geology and/or Geophysics at the 300 or 400 levels^{1}

3 units - Courses in the Fields of Geology and/or Geophysics at the 400 level or higher^{1}

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

3 units - Mathematics 211 or 213

3 units - Mathematics 249 or 265 or 275

3 units - Mathematics 267 or 277

6 units - Mathematics 311 or 313; and Statistics 321

3 units - Mathematics 367 or 376

9 units - Courses in the Field of Mathematics

3 units - Courses in the Field of Mathematics at the 400 level or higher

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

3 units - Either Physics 211 or 221 or 227

3 units - Physics 229

6 units - Either Physics 223 and 323; or 355 and 397

15 units - Courses in the Field of Physics or the Field of Astrophysics at the 300 level or higher

3 units - Courses in the Field of Physics or the Field of Astrophysics at the 400 level or higher