[Code of Federal Regulations]
[Title 49, Volume 6]
[Revised as of October 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR510.10]

[Page 33-34]
 
                        TITLE 49--TRANSPORTATION
 
                   CHAPTER V--NATIONAL HIGHWAY TRAFFIC
                    SAFETY ADMINISTRATION, DEPARTMENT
                            OF TRANSPORTATION
 
PART 510_INFORMATION GATHERING POWERS--Table of Contents
 
Sec.  510.10  Supplementation of responses to process.

    (a) A person, sole proprietorship, partnership, corporation, or 
other entity which has provided NHTSA with information under this part, 
which information was complete and accurate at the time the information 
was given to NHTSA, is not required to supplement

[[Page 34]]

that information in the light of after acquired information, except:
    (1) The person or entity to whom the process is addressed shall 
supplement the response with respect to any question directly addressed 
to the identity and location of persons having knowledge of information 
obtainable under this part.
    (2) The person or entity to whom the process is addressed shall 
seasonably amend a prior response if that person or entity obtains 
information upon the basis of which the person or entity knows that the 
response was incorrect when made or the person or entity knows that the 
response, though correct when made, is no longer true and the 
circumstances are such that a failure to amend the response is in 
substance a knowing concealment.
    (b) The requirement to supplement information set forth in paragraph 
(a) of this section terminates when:
    (1) The compulsory process stated that it was issued in connection 
with a contemplated rulemaking action, and a final rule is issued on 
that subject or a notice is issued announcing that the rulemaking action 
has been suspended or terminated.
    (2) The compulsory process stated that it was issued in connection 
with an enforcement investigation, and the investigation is closed.
    (3) The compulsory process does not state that it is issued in 
connection with a specific rulemaking action or enforcement 
investigation, and 18 months have passed since the date of the original 
response.
    (c) This section in no way limits NHTSA's authority to obtain 
supplemental information by specific demands through the means specified 
in Sec.  510.3.