Document 10NzQxax4zORdj3vGdZm5K7La

Page 3073 1 The continuation on that is that one must 2 maintain that certification on a continuing basis. I 3 believe it is every three years. 4 That certification is reevaluated and a 5 letter with documentation is resubmitted along with a 6 review of credentials and in some cases reevaluation 7 of the testing. 8 Q Are you certified in toxicology? 9 A I am, sir. 10 Q Do you recall when you were first 11 certified? 12 A During the first or second year when the 13 certification was offered, I think it was 1981 that my 14 certification came through. 15 Q Okay. If I understand your testimony 16 correctly up to this point, pharmacology involves the 17 study of chemicals that both aid and harm the body; is 18 that correct? i 19 A The full range of effects, that is correct. > 20 Q As a pharmacologist and toxicologist, are ; 21 you familiar with a concept that we have heard about i