Revision Checklist 119 Summary

Rule Titles:	Toxicity Characteristic Revision and Hazardous Waste Management System; Identification and Testing of Hazardous Waste; Toxicity Characteristic Revision
Checklist Title:	Toxicity Characteristic Revision; TCLP Correction
Reference:	57 FR 55114-55117 and 58 FR 6854
Promulgation Date:	November 24, 1992 and February 2, 1993
Effective Date:	November 24, 1992
Cluster:	RCRA Cluster III
Provision Type:	HSWA provisions
Linkage:	Revision Checklist 74, 108 and 117 B
Optional:			Yes

Summary:  The November 24, 1992 rule removes the quality assurance (QA) requirements found in Method 1311, Toxicity Characteristic Leaching Procedure (TCLP), for correcting measured values for analytical bias.  Appropriate QA provisions are retained including that the matrix spike recoveries be calculated and that the method of standard additions be employed as the quantitation method for metallic contaminants when appropriate as specified in the method.  The February 2, 1993 rule corrects a minor technical error in Part 261, Appendix II.

State Authorization:  This rule is placed in RCRA Cluster III.  The State modification deadline is July 1, 1994 (or July 1, 1995 if a State statutory change is necessary).  All changes go into effect immediately, because this rule was promulgated under HSWA authorities.  Both interim and final authorization are available, with the former expiring January 1, 2003.  The State Revision Application must include applicable regulations, an AG statement addendum, Revision Checklist 119, other associated checklists and other application materials, i.e., a program description and an MOA, as determined by the Regional office.

Attorney General's Statement Entry:  The following entry should be placed at Subsection I AA in the Model Revision Attorney General's Statement.

	AA.	[OPTIONAL:  This is a reduced requirement.]  State statutes and regulations do not require the use of the spike recovery correction as part of the Toxicity Characteristic Leaching Procedure as indicated in Revision Checklist 119.

Federal Authority:  RCRA §§1006, 2002, 3001, 3002 and 3006; 40 CFR 261, Appendix II, as amended November 24, 1992 (57 FR 55114) and February 2, 1993 (58 FR 6854).

Citation of Laws and Regulations; Date of Enactment and Adoption

Remarks of the Attorney General