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<tbody>
<tr class="odd">
<td colspan="13"><strong>AMENDMENT OF SOLICITATION/MODIFICATION OF
CONTRACT</strong></td>
<td colspan="2"></td>
<td colspan="3"><blockquote>
<p>1. CONTRACT ID CODE</p>
</blockquote>
<p>     </p></td>
<td colspan="3"><blockquote>
<p>PAGE<br />
1 of 6</p>
</blockquote></td>
</tr>
<tr class="even">
<td colspan="4"><blockquote>
<p>2. AMENDMENT/MODIFICATION NO.</p>
</blockquote></td>
<td colspan="5"><blockquote>
<p>3. EFFECTIVE DATE</p>
</blockquote></td>
<td colspan="8"><blockquote>
<p>4. REQUISITION/PURCHASE NO.</p>
</blockquote></td>
<td colspan="4"><blockquote>
<p>5. PROJECT NO. <em>(If applicable)</em></p>
</blockquote></td>
</tr>
<tr class="odd">
<td colspan="4"><blockquote>
<p>2</p>
</blockquote></td>
<td colspan="5"><blockquote>
<p>9-3-02</p>
</blockquote></td>
<td colspan="8"><blockquote>
<p>204101</p>
</blockquote></td>
<td colspan="4"><blockquote>
<p>     </p>
</blockquote></td>
</tr>
<tr class="even">
<td colspan="3"><blockquote>
<p>6. ISSUED BY</p>
</blockquote></td>
<td colspan="5">CODE</td>
<td colspan="3"><blockquote>
<p>0613/GMW</p>
</blockquote></td>
<td colspan="9"><blockquote>
<p>7. ADMINISTERED BY <em>(If other than Item 6)</em> CODE</p>
</blockquote></td>
<td><blockquote>
<p>     </p>
</blockquote></td>
</tr>
<tr class="odd">
<td colspan="11"><blockquote>
<p>NASA Glenn Research Center<br />
Attn: Glen M. Williams<br />
Technology Support Branch<br />
21000 Brookpark Road, Mail Stop 500-306<br />
Cleveland, OH 44135-3191</p>
</blockquote></td>
<td colspan="10"><blockquote>
<p>     </p>
</blockquote></td>
</tr>
<tr class="even">
<td colspan="12"><blockquote>
<p>8. NAME AND ADDRESS OF CONTRACTOR <em>(No., street, county, State and
Zip Code)</em></p>
</blockquote></td>
<td colspan="4"></td>
<td colspan="5"><blockquote>
<p>9A. AMENDMENT OF SOLICITATION NO.</p>
</blockquote></td>
</tr>
<tr class="odd">
<td colspan="12"><blockquote>
<p>To All Offerors/Bidders</p>
</blockquote></td>
<td colspan="4"></td>
<td colspan="5"><blockquote>
<p>RFO3-204101</p>
<p>9B. DATED <em>(SEE ITEM 11)</em></p>
</blockquote>
<p>     </p>
<p>10A. MODIFICATION OF CONTRACT/ORDER NO.</p>
<p>     </p>
<p>10B. DATED <em>(SEE ITEM 13)</em></p></td>
</tr>
<tr class="even">
<td colspan="6">CODE      </td>
<td colspan="6"><blockquote>
<p>FACILITY CODE      </p>
</blockquote></td>
<td colspan="4"></td>
<td colspan="5"><blockquote>
<p>     </p>
</blockquote></td>
</tr>
<tr class="odd">
<td colspan="21"><blockquote>
<p><strong>11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF
SOLICITATIONS</strong></p>
</blockquote></td>
</tr>
<tr class="even">
<td colspan="21"><p> The above numbered solicitation is amended as set
forth in Item 14. The hour and date specified for receipt of Offers is
extended, is not extended.<br />
Offers must acknowledge receipt of this amendment prior to the hour and
date specified in the solicitation or as amended, by one of the
following methods:</p>
<p>(a) By completing Items 8 and 15, and returning
<strong><u>   </u></strong> copies of the amendment; (b) By
acknowledging receipt of this amendment on each copy of the offer
submitted; or (c) By separate letter or telegram which includes a
reference to the solicitation and amendment numbers. <strong>FAILURE OF
YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE
RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN
REJECTION OF YOUR OFFER.</strong> If by virtue of this amendment you
desire to change an offer already submitted, such change may be made by
telegram or letter, provided each telegram or letter makes reference to
the solicitation and this amendment, and is received prior to the
opening hour and date specified.</p></td>
</tr>
<tr class="odd">
<td colspan="21"><blockquote>
<p>12. ACCOUNTING AND APPROPRIATION DATA <em>(If required)</em></p>
</blockquote></td>
</tr>
<tr class="even">
<td colspan="21"><blockquote>
<p>     </p>
</blockquote></td>
</tr>
<tr class="odd">
<td colspan="21"><blockquote>
<p><strong>13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF
CONTRACTS/ORDERS,<br />
IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.</strong></p>
</blockquote></td>
</tr>
<tr class="even">
<td></td>
<td>A</td>
<td colspan="19"><p>THIS CHANGE ORDER IS ISSUED PURSUANT TO <em>(Specify
authority)</em>       THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE
CONTRACT ORDER NO. IN ITEM 10A.</p>
<p>     </p></td>
</tr>
<tr class="odd">
<td></td>
<td><blockquote>
<p>B</p>
</blockquote></td>
<td colspan="19"><blockquote>
<p>THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE
ADMINISTRATIVE CHANGES <em>(Such as changes in paying office,
appropriation date, etc.)</em>       SET FORTH IN ITEM 14, PURSUANT TO
THE AUTHORITY OF FAR 43.103(b).</p>
<p>     </p>
</blockquote></td>
</tr>
<tr class="even">
<td></td>
<td><blockquote>
<p>C</p>
</blockquote></td>
<td colspan="19"><p>THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT
TO AUTHORITY OF:</p>
<p>     </p></td>
</tr>
<tr class="odd">
<td></td>
<td><blockquote>
<p>D</p>
</blockquote></td>
<td colspan="19"><blockquote>
<p>OTHER <em>(Specify type of modification and authority)</em></p>
<p>     </p>
</blockquote></td>
</tr>
<tr class="even">
<td colspan="21"><blockquote>
<p><strong>E. IMPORTANT: Contractor</strong> <strong>is not,</strong>
<strong>is required to sign this document and return <u>1</u> copies to
the issuing office.</strong></p>
</blockquote></td>
</tr>
<tr class="odd">
<td colspan="21"><blockquote>
<p>14. DESCRIPTION OF AMENDMENT/MODIFICATION <em>(Organized by UCF
section headings, including solicitation/contract subject matter where
feasible.)</em></p>
</blockquote></td>
</tr>
<tr class="even">
<td colspan="21"><blockquote>
<p>1. The close date for receipt of offers is hereby extended to
September 27, 2002.</p>
<p>2. Questions and their official answers follow on the attached
pages.</p>
</blockquote></td>
</tr>
<tr class="odd">
<td colspan="21">Except as provided herein, all terms and conditions of
the document referenced in Item 9A or 10A, as heretofore changed,
remains unchanged and in full force and effect.</td>
</tr>
<tr class="even">
<td colspan="10"><blockquote>
<p>15A. NAME AND TITLE OF SIGNER <em>(Type or print)</em></p>
</blockquote></td>
<td colspan="11"><blockquote>
<p>16A. NAME AND TITLE OF CONTRACTING OFFICER <em>(Type or
print)</em></p>
</blockquote></td>
</tr>
<tr class="odd">
<td colspan="10"></td>
<td colspan="11">Glen M. Williams, Contracting Officer</td>
</tr>
<tr class="even">
<td colspan="7"><blockquote>
<p>15B. CONTRACTOR/OFFEROR</p>
</blockquote></td>
<td colspan="3"><blockquote>
<p>15C. DATE SIGNED</p>
</blockquote></td>
<td colspan="9"><blockquote>
<p>16B. UNITED STATES OF AMERICA</p>
</blockquote></td>
<td colspan="2"><blockquote>
<p>16C. DATE SIGNED</p>
</blockquote></td>
</tr>
<tr class="odd">
<td colspan="7">BY_________________________________________</td>
<td colspan="3"></td>
<td colspan="9">BY_________________________________________</td>
<td colspan="2">     </td>
</tr>
<tr class="even">
<td colspan="7"><em>(Signature of person authorized to sign)</em></td>
<td colspan="3"></td>
<td colspan="9"><em>(Signature of Contracting Officer)</em></td>
<td colspan="2"></td>
</tr>
<tr class="odd">
<td colspan="5">NSN 7540-01-152-8070<br />
PREVIOUS EDITION NOT USABLE</td>
<td colspan="9">30-105</td>
<td colspan="7"><strong>STANDARD FORM 30 (REV. 10-83) (GRC Overprint
09/01)</strong><br />
Prescribed by GSA<br />
FAR (48 CFR) 53.243</td>
</tr>
</tbody>
</table>

**The following questions and answers are hereby provided and broken
down into some general categories for ease of reference.**

**A. Business Proposal**

1\. Is the business proposal the same as the cost proposal? Or, are
these different, and if so, how are they different? Is the business
proposal backup for the cost proposal?

The business proposal contains the cost proposal for the sample tasks.
The business proposal also is to contain other information as required
in the RFO.

2\. Requirements for names and resumes of experience for key and
technical personnel is required and stated in both the technical and
business management plan as a requirement. Can NASA consider one set of
resumes with reference in the technical proposal to the resumes in the
business management plan or is the information to be duplicated for
parallel evaluation?

Only 1 set or resumes need to be submitted. Place them in your business
proposal.

**B. Pricing**

1\. RFO, Page 6, Item 13.B.6 requests hourly time estimates by class.
What is the definition of \"class\"?

Direct labor categories

2\. Is pricing information from the offeror applicable to the sample
tasks only? Is pricing required for the maximum effort?

See RFO provision13.A.1. A cost breakdown must be provided for the 2
sample tasks based upon your technical proposal describing how you will
perform them.

3\. Is there a sample cost schedule submission that he would like us to
follow?

You may use any format you wish as long as it clearly shows the various
cost categories for that sample task (i.e. direct labor, overhead,
materials, subcontracts, G&A, travel, other direct costs, and profit).
Each sample task must have a separate cost breakdown.

4\. What is the assumed start date for costing purposes.

Assume the sample tasks are being issued as of the close date for this
RFO\'s receipt of proposals. (End of September 2002)

5\. Would cost or pricing data for 13.A.2 only be required if we
submitted an alternate proposal for completing the sample tasks \[e.g.,
proposed a manpower estimate different than stated in the sample
tasks\]. Is this a correct interpretation?

Cost and Pricing Data as defined in the FAR is not required under this
solicitation. However, other than cost and pricing data is required for
each sample task which has been defined within the RFO (all cost
elements that make up your price). A number of direct labor hours for
performance of the sample tasks has been provided so that offerors would
know the limit to the effort and can thus provide a cost breakdown for
performance of those sample tasks. The cost breakdowns the offeror
provides is to reflect the technical proposal actually submitted to
perform those sample tasks and if they feel that they need more hours to
perform them adequately or propose some alternate technical proposal
then they need to reflect that in both their technical proposal and cost
information they provide.

**C. Model Contract and Misc**

1\. Is subcontracting to other businesses (whether large or small)
permissible for this work? If so, to what extent?

See Clause 52.219-14. Subcontracting is permissible for the purpose of
proposing to the sample tasks as well as any task issued under the
contract within the bounds cited by this clause.

2\. RFO Page 10, Item 20 regarding multiple awards and model contract,
Page 2, Item 24.(b): Is \$2M per year the maximum for all contracts if
multiple awards are made or is it the maximum per contract?

Yes to both\....it\'s conceivable that one awardee could win all tasks
issued during that year

3\. Will the \"sample task(s)\", as conveyed in the RFO, be competed
among the successful offeror(s) after award?

They may or may not be actual tasks...it's not known at this time. If
they are, they will be competed per RFO provision 20, paragraph 2 when
it comes time for their need.

4\. Is this contract going to be Level of Effort or FFP? #23 indicates

LOE and #25 indicates FFP. If it is LOE, are the tasks going to be based

on number of hours per labor category or will it be number of total
hours?

Tasks will be FFP. However in order to propose to a task, awardees will
be provided the estimated hours needed to perform the task in order to
provide a proposal. Unless stated otherwise in the task, the hours are
usually engineering hours needed for the performance of the technical
effort. Non-technical clerical hours are usually in addition to those
stated. The number of technical hours is a limitation incorporated into
the performance of the task which protects the offeror from being
required to perform efforts beyond what the task stated.

5\. Is the effort identified in Attachment A: Scope of Work a separate
work statement or is it applied to how the work is performed in Sample
Task 1 and Sample Task 2?

Any tasks issued will fall within the Scope of Work shown in the model
contract. This is a general list of technical disciplines that issued
tasks will fall under. You are not required to perform efforts under
this contract that do not fall under the scope shown.

6\. A company with whom we currently have a contract for ATM support is
working on NASA VAMS does this create a conflict of interest?

If they have a direct role in assisting the Govornment determine its
needs under this contract (the tasks to be performed)\...yes. They
should be aware of whether or not their current Government contract
contains clauses concerning any restrictions in competing in other
contracts.

7\. The Sample Tasks have an execution period of about 1 year yet the
solicitation seams to indicate a response indicating level of effort for
each of five years could you clarify?

The contract is for 5 years. Tasks of various durations could be issued
within that 5 yr period. The offeror is to fill in the number of
(engineering) hours that equates to \$2million for each year keeping in
mind inflation, wage increases etc.

8\. How are the offerors intellectual property rights protected under
this contract?

Read clause 52.227-14

**D. Best Value Explanations**

1\. Given the terms/conditions of the RFO as cited, please explain RFO
Page

7, Item 14.1, which states that, \"performance of the sample tasks
without the use of subcontractors\" is a best value characteristic
applicable to this procurement.

This Best Value Criteria does not mean that an offeror can not use
subcontractors or is precluded from proposing their use to perform the
sample tasks or work under the actual contract. It means that for those
that the evaluation determines to be finalists, those that can perform
the sample tasks without use of a subcontractor will be considered of
better value than those that use a subcontractor(s). However, that does
not mean that an offeror who proposes the use of subcontractors will be
eliminated out of hand.

**E. RFO Clarifications**

1\. Must a technical proposal be submitted for each/all of the sample
tasks, or may each offeror submit proposals only for those sample tasks
within their core competencies?

Page 9 of the RFO states offerors are to respond to all the sample
tasks.

2\. RFO Page 1, Block 9 states that offers shall be submitted on the
model contract (filled in as indicated \...\...) Specifically, what
blocks and/or items are to be filled in?

Cover page blocks 10, 19, 21 and page 2 clause 24

3\. RFO Page 1, Block 9 had questions concerning its meaning:

It means that your offer will be valid for 90 days unless you state a
different validity period.

4\. Is there an allowance for amending the proposed costs after
solicitation close?

Your best price to perform the sample tasks is to be provided. Note
provision 14, last sentence on page 8.

5\. Since Solicitation is for an ID/IQ contract with no minimum award
provided,

no clear time table for Task Order Award, nor any specific type/order of

Task Orders are going to be issued/awarded, how can an Offeror credibly

state the extent to which various proposed technical staff will
participate?

Offeror and subcontractor technical staff are already directly employed
on

contracts. Since this is not a follow-on, shouldn\'t Offeror\'s be able
to

differentiate between earmarked staff and \"credential representatives\"
who

can be used on an interim basis until new or re-assigned full-time staff

can be fully obligated? (i.e., industry does not usually have the luxury
of

employing a stable of professionals that can be earmarked specifically
for

new ID/IQ contracts).

See provision 13.A.3-6 and 13.B.5. Explain your current staffing (and
facilities), how they can be applied and how you will handle needs that
are beyond the current staffing (or capacity of the facility) in your
business proposal.

**F. Technical and Sample Task Questions**

1\. Where is the place of performance? On-site (NASA/GRC), Off-site
(Cleveland or vendor\'s other location) or a combination?

Performance is typically off-site (your facility) but tasks may require
travel to GRC or other locations

2\. RFO, Page 10, Item 19.B states that Sample Task 001 is estimated at
1000 hours of direct labor including subcontracted labor).

a\. What is the performance period of the task? see 19B page 10

b\. What are the anticipated meeting frequency and travel destinations?
Once per month for 2 or 3 days in the D.C. area for RTCA or other
support. Meetings at GRC will typically be 1 full day in duration.

c\. Will foreign travel be expected? International travel is not
anticipated.

3\. Are the automation and decision support tool algorithms provided by
NASA GRC or does the offerer develop them?

NASA GRC will not provide the algorithms and decision support tools. The
contractor must obtain existing tools from other organizations ( Nasa
Ames, MIT/LL, Mitre etc. ), but will not have to develop them.

4\. On Page 34, Schedule are Subtask 1, 2, and 3, are the FTE's an
allocation of the permitted effort for the task or are they an example
of how you want to see the estimate represented?

This is the basis for the direct labor needed to perform the effort and
what you should be basing your proposal (cost and technical) on.

5\. Have you estimated what percentage of each contract should be
allocated to meet the reporting requirements of this contracting
vehicle?

Typically reporting is about 10-15% of the cost, but this is not a
requirement.

6\. Does this contract require any full-time staff to be available?

No

7\. Does the staff supporting this contract and subsequent task orders
need to be located near the NASA Glenn Research Center?

No

8\. If staff is not located near the center (possibly in other
city/states) what would be the required face-to-face meeting frequency?

Sample Task 1, Kickoff meeting plus two more at GRC. Sample Task 2,
kickoff meeting, mid term and final at GRC. Meetings are 1 full day in
duration.

9\. Could you provide all of the pertinent travel details for the
meetings in Task 1 & 2? We would like to have the location, and the
number of days for all of the meetings so they can be priced out
accordingly.

See #8 above. Task 1 also requires 2-3 days per month in the D.C. area
for RTCA support.

10\. In Sample Task 1, NASA has identified the RTCA special committees
it wishes to support. However, these committees have multiple working
groups. It is in these working groups where most of the analysis is
defined, assigned, and reported out. Please clarify if NASA expects the
contractor to support working groups, including concurrent working
groups, or will NASA limit contractor participation to plenary
activities only?

Yes, there will be support of working groups within committees but not
concurrently.

11\. In Sample Task 1, concerning RTCA Free Flight Steering Committee
support, does NASA GRC expect any pre/post-meeting support (e.g. policy
briefs/coordination) at NASA Glenn by the contractor?

Not necessarily.

12\. Does NASA have an estimate of the percentage of the total time

for any given task order that a contract might expected to be

on-site at the GRC facility?

See #8 above.

13\. Will NASA provide access to special purpose commercial software

tools (i.e. OPNET) that may be required to develop various

simulations, perhaps on an on-site or limited access basis, or

will the contractor be expected to provide these tools?

No. The contractor is expected to provide the tools.

14\. In sample task 1, part 2.2, what is the expected level of

independent technical contribution on the part of the contractor,

and if any significant contribution is expected, how will it

attributed?

NASA expects significant technical contributions from the contractor.
Attribution will be determined by participation in committee proceedings
and submission of technical and white papers.

15\. Sample task 2 refers to the VAST software package. Will this be

made available to the contractor for use at their own facility?

Assume that the VAST tools that are necessary for the development effort
will be made available by NASA. (After contract award, any actual Task
Orders that are issued will specify any GFP so that accurate proposals
can be provided.)

16\. What would be a typical scope for an effort as described in

sample task 2 in terms of number of aircraft, geographic area

and time duration?

Utilizing the Safe Flight 21- ADS-B Technical Link Assessment Team
scenario, assume 2694 aircraft within a 400 NM radius of Los Angeles.
This is a peak load. Duration has no meaning in this context.