40 CFR §148.1

1. (a)This part identifies wastes that are restricted from disposal into Class I wells and defines those circumstances under which a waste, otherwise prohibited from injection, may be injected.
2. (b)The requirements of this part apply to owners or operators of Class I hazardous waste injection wells used to inject hazardous waste.
3. (c)Wastes otherwise prohibited from injection may continue to be injected:
   1. (1)If an extension from the effective date of a prohibition has been granted pursuant to § 148.4 with respect to such wastes; or
   2. (2)If an exemption from a prohibition has been granted in response to a petition filed under § 148.20 to allow injection of restricted wastes with respect to those wastes and wells covered by the exemption; or
   3. (3)If the waste is generated by a conditionally exempt small quantity generator, as defined in § 261.5; or
4. (d)Wastes that are hazardous only because they exhibit a hazardous characteristic, and which are otherwise prohibited under this part, or part 268 of this chapter, are not prohibited if the wastes:
   1. (1)Are disposed into a nonhazardous or hazardous injection well as defined under 40 CFR § 146.6(a); and
   2. (2)Do not exhibit any prohibited characteristic of hazardous waste identified in 40 CFR part 261, subpart C at the point of injection.