StacksVerified U.S. regulatory reference

40 CFR §279.55

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Owners or operators of used oil processing and re-refining facilities must develop and follow a written analysis plan describing the procedures that will be used to comply with the analysis requirements of § 279.53 and, if applicable, § 279.72. The owner or operator must keep the plan at the facility.
  1. (a)Rebuttable presumption for used oil in § 279.53. At a minimum, the plan must specify the following:
    1. (1)Whether sample analyses or knowledge of the halogen content of the used oil will be used to make this determination.
    2. (2)If sample analyses are used to make this determination:
      1. (i)The sampling method used to obtain representative samples to be analyzed. A representative sample may be obtained using either:
        1. (A)One of the sampling methods in appendix I of part 261 of this chapter; or
        2. (B)A method shown to be equivalent under §§ 260.20 and 260.21 of this chapter;
      2. (ii)The frequency of sampling to be performed, and whether the analysis will be performed on-site or off-site; and
      3. (iii)The methods used to analyze used oil for the parameters specified in § 279.53; and
    3. (3)The type of information that will be used to determine the halogen content of the used oil.
  2. (b)On-specification used oil fuel in § 279.72. At a minimum, the plan must specify the following if § 279.72 is applicable:
    1. (1)Whether sample analyses or other information will be used to make this determination;
    2. (2)If sample analyses are used to make this determination:
      1. (i)The sampling method used to obtain representative samples to be analyzed. A representative sample may be obtained using either:
        1. (A)One of the sampling methods in appendix I of part 261 of this chapter; or
        2. (B)A method shown to be equivalent under §§ 260.20 and 260.21 of this chapter;
      2. (ii)Whether used oil will be sampled and analyzed prior to or after any processing/re-refining;
      3. (iii)The frequency of sampling to be performed, and whether the analysis will be performed on-site or off-site; and
      4. (iv)The methods used to analyze used oil for the parameters specified in § 279.72; and
    3. (3)The type of information that will be used to make the on-specification used oil fuel determination.