Table 3.

NTP Final hazard conclusions by time period. The four possible level of evidence ratings are: High, Moderate, Low, or Inadequate. The five possible NTP final hazard identification conclusions are: Known, Presumed, Suspected, Not Classifiable, or Not Identified to be a Hazard to Humans.

Outcome	Time Period	Level of Evidence Rating (Human/Animal)	NTP Final Hazard Conclusion
Cholinesterase	Initial	High/Moderate	Known
	Intermediate	Low/Moderate	Suspected
	Extended	Inadequate/Inadequate	Not Classifiable
Vision & Ocular Effects	Initial	Moderate/Inadequate	Suspected
	Intermediate	Moderate/Inadequate	Suspected
	Extended	Low/Inadequate	Not Classifiable
Learning, Memory, & Intelligence	Initial	Inadequate/Low	Not Classifiable
	Intermediate	Low/Low	Not Classifiable
	Extended	Moderate/Low	Suspected
Morphological & Histological Effects	Initial	Inadequate/Moderate	Suspected
	Intermediate	Inadequate/Moderate	Suspected
	Extended	Moderate/Inadequate	Suspected