From the RULES CLARIFICATIONS page:
Junkyard Challenge: Section 3.i. and 4.g. and 4. Ties, Seconds are recorded in "whole seconds" so, 59.5 would be recorded as 59. And, any time between 60.00-60.99 would be recorded as 60, after which actions are no longer scored (See the posted Junkyard FAQs). The 2nd Tiebreaker should read: Closest time of operation to 60 seconds" (4/12/10)
From the JUNKYARD CHALLENGE FAQ page.
(section: 4 / paragraph: q / sub-paragraph: ii / line: 1)
# 02/01/2010 - 19:14 “ties broken by longest time up to 60 sec”. Is the actual time (to the hundredth of the second) used for this tiebreaker or should the time be the “whole second” time that was scored? If whole seconds are used, what is the 3rd tiebreaker?
The second tie breaker should be what was recorded in either tenths or hundredths up to 60.99 seconds since 60.99 seconds is technically 60 whole seconds, no rounding involved. The third tie breaker should be greatest variety in device design.
There is a slight disconnect between these two statements. The clarification states the time will be "recorded" in "whole" seconds and the FAQ states the "The second tie breaker should be what was "recorded" and continues on saying "in either tenths or hundredths up to 60.99 seconds". The disconnect is: If the time was recorded in whole seconds as stated in the clarification, there will be no "tenths or hundredths" to use for the second tiebreaker.
In checking, this is what they really mean: The actual time will be recorded to the resolution indicated by the instrument used. The time used for scoring will be the actual time truncated to whole seconds. The time used for the second tiebreaker will be the actual recorded time (using the resolution of the timing instrument).
What they will actually do is anybody's guess.