Appendix A to Subpart A of Part 750

To assist in reading the regulations set forth above, this appendix sets forth the principal stages through which rules promulgated under section 6 of TSCA will pass.

The second column gives the relationship that one date bears to another whenever that relationship is specified in the regulations, and cites the governing provision. The third column contains estimates of the time that a typical rulemaking is likely to require to reach and complete each stage of these proceedings. In drawing up this third column, we have assumed that 60 days will be allowed for the submission of main comments; that the legislative phase of the informal hearing will take two weeks, and that cross-examination will take four days. Since these are only estimates, in any given rulemaking shorter or longer times may actually be required for each of these stages.

Stage	Timing in relation to other stages	Estimated total time elapsed (days)
Proposed regulation	Sec. 750.2
Requests to participate in informal hearing due	3 weeks prior to beginning of hearing (§750.2(a))	53
Main comments due	2 weeks prior to beginning of hearing (§750.2(c)(3))	60
Begin informal hearing		74
End legislative hearing		88
Requests for cross-examination due	1 week after end of legislative hearing (§750.8(a))	95
Ruling on cross-examination requests	1 week after requests are due (§750.8(b))	102
Cross-examination begins	1 week afer ruling on cross-examination requests (§750.8(c))	109
Cross-examination ends; informal hearing ends		113
Reply comments due	2 weeks after end of informal hearing (§750.4(b))	127