43 CFR §3262.10

1. (a)When drilling a well, you must:
   1. (1)Keep the well under control at all times by:
      1. (i)Conducting training during your operation to maintain the capability of your personnel to perform emergency procedures quickly and effectively;
      2. (ii)Using properly maintained equipment; and
      3. (iii)Using operational practices that allow for quick and effective emergency response.
2. (b)You must use sound engineering principles and take into account all pertinent data when:
   1. (1)Selecting and using drilling fluid types and weights;
   2. (2)Designing and implementing a system to control fluid temperatures;
   3. (3)Designing and using blowout prevention equipment; and
   4. (4)Designing and implementing a casing and cementing program.
3. (c)Your operation must always comply with the requirements of § 3200.4.