Appendix A to Subpart A

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.

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