INDEX


                     PROCEDURES FOR PREPARING FORECASTS

1.  GENERAL.

    a.   Forecasts shall be submitted on DOE F 5660.1, "Forecast of Nuclear
         Material Requirements," (see page I0) for specified nuclear
         materials.  Computer-generated facsimiles of this form are
         acceptable.  Nuclear materials to be forecast and the reporting
         units to be used are as follows:

                                  Material To Be
              Material Type          Forecast         Reporting Units /1
              -------------       --------------      ------------------
              Enriched Uranium    U-235 isotope         kilogram
              Plutonium           Total Pu              kilogram
              Uranium-233         U-233 isotope         kilogram
              Heavy Water (D2O)   D2O equivalent /2     kilogram
              Plutonium-238       Pu-238 isotope        gram
              Tritium             Tritium               gram
              Normal Uranium      Total U               metric ton
              Depleted Uranium    Total U               metric ton
              Plutonium-242       Pu-242 isotope        gram
              Americium-243       Am-243 isotope        gram
              Curium              Curium                gram
              Neptunium-237       Np-237 isotope        kilogram

    b.   Projects with entries (blocks 25-74) less than the following
         threshold quantities shown below may be omitted from the forecast:

                            Threshold Quantities
                            --------------------
            Material                                 Unit
            --------                                 ----
         Enriched Uranium                        2 kg U-235
         Plutonium                               2 kg Pu
         Uranium-233                             1 kg U-233
         Heavy Water (D2O)                       500 kg D2O (equivalent)
         Plutonium-238                           100 gm Pu-238
         Tritium                                 10 gm Tritium
         Normal Uranium                          10 MT U
         Depleted Uranium                        10 MT U
         Plutonium-242                           100 gm Pu-242
         Americium-243                           1 gm Am-243
         Curium                                  1 gm Cm
         Neptunium-237                           1 kg Np-237

----------------------
    /1 Rounding procedure:  Fractions of 0.5 or greater shall be rounded up
and fractions of less than 0.5 shall be rounded down.  Abbreviations used
throughout the Order are:  metric ton (MT), kilogram (kg), and gram (gm).

    /2 Deuterium quantities should be converted to heavy water equivalent
quantities by multiplying the deuterium quantities by 4.98.


    c.   Forecasts shall be accompanied by relevant assumptions upon which
         entries are based.

2.  INSTRUCTIONS FOR COMPLETING DOE F 5660.1.  The specific instructions
    shown below correspond to the item numbers on DOE F 5660.1.

    a.   Blocks 1-10.  Enter the 10-character alphanumeric project number.
         Material in projects prefixed with "M", "I", and "E" designators
         should not be included in the forecasts.

    b.   Project Title.  Enter the title of the project number noted in
         blocks (1-10).  The project title should agree with the project
         number contained in the official DOE Project Number-Title Index
         (Nuclear Materials Management and Safeguards System T-141 report).

    c.   Block 11.  Enter the appropriate material type code applicable to
         all of the items on the page.  List only one material type on each
         DOE F 5660.1.  If more space is required, continue on another DOE F
         5660.1, repeating material type, project number, and title.

              Material Type                                Code
              -------------                                ----
              U-235 ......................................   1
              Pu .........................................   2
              U-233 ......................................   3
              Pu-238 .....................................   4
              D2O ........................................   5
              Tritium ....................................   6
              Other (specify) ............................   7

         Forecasts for Pu-242, Am-243, Np-237, curium, normal and depleted
         uranium should use Code 7 "Other" with the material noted, as
         appropriate.  If forecasts are required for nuclear materials not
         listed above, the materials should be identified under Code 7,
         "Other".

    d.   Entry Type and Block 12.  Enter the appropriate entry type and
         entry type code shown below for all entries applicable to a line.
         Entry type codes should be arranged in numerical order.  Several
         lines may have the same entry type because of different material
         assays.  Multiple entries for the same entry type code should be
         listed in decreasing materials assay.

              Entry Type                                        Code
              ----------                                        ----
              Beginning Inventory .............................   1
              Withdrawal ......................................   2
              Unirradiated Return .............................   3
              Irradiated Return ...............................   4
              Transfer In .....................................   5
              Transfer Out ....................................   6
              Burnup, Losses, and Expended in Nuclear Tests ...   7
              Formation .......................................   8
              Launch ..........................................   9
              Ending Inventory ................................   0

    e.   Definitions of Entry Types.

         (1)  Beginning Inventory.  The actual inventory at the beginning of
              the current fiscal year of the forecast period reported by
              project number.  All quantities assigned to the project should
              be included in this inventory without regard to physical
              location.

         (2)  Withdrawal.  Receipt of nuclear material by a user project
              from a supply project.  (The receipt of nuclear material from
              an "E" or "M" project by a user project is considered a
              withdrawal.)

         (3)  Return.  Removal of nuclear material from a user project to a
              supply project.  The removal of material from any user project
              to an "E" or "M" project number (see Chapter VI) is also
              considered a return.  Returns are further described as either
              unirradiated or irradiated material.

         (4)  Transfer In.  A receipt of nuclear material by a user project
              from any source other than a supply project.  Includes
              material obtained from other user projects, Federal agencies,
              foreign countries, or private ownership.  Footnote the project
              number and location from which the material is to be obtained.
              Material obtained from another contractor or location without
              a change in project number is not considered a transfer in.

         (5)  Transfer Out.  A removal of nuclear material from a user
              project to any destination other than a supply project.
              Includes material provided to other user projects, other
              Federal agencies, foreign countries, domestic companies for
              private use, and "I" projects.  Footnote the project number
              and location to which the material will be transferred.
              Material sent to another contractor or location without a
              change in project number is not a transfer out.

         (6)  Burnup, Losses, and Expended in Nuclear Tests.  Removals from
              inventory as a result of processing, fabrication, irradiation,
              decay, weapon tests, operational losses, and discards.

         (7)  Formation.  Material produced as a result of irradiation of
              other materials, e.g., U-233 or Pu produced in reactors.
              Tritium produced in D2O reactor moderator is excluded.

         (8)  Launch.  Material removed from inventory as a result of rocket
              launch into space, e.g., Pu-238 for electrical generation.

         (9)  Ending Inventory.  Inventory for a project at the end of each
              fiscal year (regardless of location or assay) calculated by
              adding receipts to the beginning inventory and subtracting all
              removals.

    f.   Blocks 13-15 and 16-18.

         (1)  Enter assay for materials under each entry type, as required.
              Assays are not required for Entry Type O "Ending Inventory".
              Assays shall be entered for materials as follows:

                   Material              Assay Data
                   --------              ----------
                   U-235          Wt % U-235 to nearest 0.1%
                   Pu             Wt % Pu-240 to nearest 0.1%
                   U-233          Ppm U-232 in uranium
                   D2O            Do not enter assay data
                   Pu-238         Wt % Pu-238 to nearest 0.1%
                   Tritium        Do not enter assay data
                   Normal U       Do not enter assay data
                   Depleted U     Do not enter assay data
                   Pu-242         Wt % Pu-242 to nearest 0.1%
                   Am-243         Wt % Am-243 to nearest 0.1%
                   Curium         Do not enter assay data
                   Np-237         Do not enter assay data

         (2)  Single assays shall be shown in blocks 16-18.  Ranges of
              assays may be shown by using blocks 13-15 for the lower assay
              and blocks 16-18 for the upper assay.  Ranges of assays should
              be used for withdrawals only when absolutely necessary (i.e.,
              only where specific assays cannot be identified).  Assay
              ranges for withdrawals will be interpreted as meaning that any
              material within the indicated assay range is acceptable.
              Materials with only slight differences in assay (e.g., one
              percent U-235, Pu-240, or Pu-238) may be combined and reported
              as a single quantity with a single weighted average or major
              assay.  Small quantities of materials that individually are
              less than a reportable quantity may be combined as a single
              quantity with a single weighted average assay.  Weight percent
              should be shown for entries identified as burnup, losses, and
              expended in nuclear tests (entry type code 7).  For material
              consumed in a reactor, enter the weight percent of the
              material loaded into the reactor before irradiation.  Assays
              should be "right adjusted", i.e., entries start at right and
              work left.  A range of 5 to 50 ppm U-232, for example, would
              be shown as:

                                  ________________________
                                  |       |   |      |   |
                                  |       | 5 |    5 | 0 |
                                  |_______|___|______|___|

              For weight percent, the right-hand column is used for tenths
              of a percent.

    g.   Block 19.  For withdrawals, enter a code representing the chemical
         form of the material required from nuclear materials supply
         projects as follows (generally, only standard form material will be
         provided):

                        Code              Form
                        ----              ----
                         1             Hexafluoride
                         2             Nitrate
                         3             Metal
                         4             Oxide
                         5             Other

    h.   Blocks 20-21.  Special assay codes should be entered for irradiated
         U-235 returns and D2O withdrawals and returns, as follows:

                              Irradiated U-235
                              ----------------
                        Code                   % U-236
                        ----                   -------
                         01                       < 1
                         02                     1 < 2
                         03                     2 < 3
                         04                     3 < 4
                         05                     4 < 5
                         06                     5 < 6
                         07                     6 < 7
                         08                     7 < 8
                         09                     8 < 9
                         10                     9 < 10
                         11                    10 < 11
                         12                    11 < 12
                         13                    12 < 13
                         14                    13 < 14
                         15                      >/= 14

                         D2O Withdrawals and Returns
                         ---------------------------
                                              Microcuries
                        Code               Tritium/Milliliter
                        ----               ------------------
                         50                    < 0.00005
                         51                      0.00005-30
                         52                    > 30

    i.   Blocks 22-24.  Enter the three-character classification code
         established by American National Standards Institute in ANSI
         N15.1-1970, Classification of Unirradiated Uranium Scrap, to
         identify returns of unirradiated and irradiated enriched uranium
         (U-235), normal uranium, depleted uranium, and U-233; for returns
         of unirradiated and irradiated plutonium, Pu-238, and Pu-242, enter
         the three-character classification code in ANSI N15.10-1987,
         Unirradiated Plutonium Scrap-Classification.  Although the American
         National Standards Institute codes were established for
         unirradiated scrap, in this instance, they should also be applied
         to irradiated materials.  Care should be taken to select the most
         appropriate American National Standards Institute Code to describe
         the material.  (Although ANSI N15.1-1970 has expired, it should
         continue to be used until it is updated.  Copies of ANSI N15.1-1970
         can be obtained from the Office of Nuclear Weapons Management.)

    j.   Blocks 25-29.  On the line reflecting beginning inventory (Entry
         Code 1), enter the actual beginning inventory for the project,
         regardless of location, as of the first day of the current fiscal
         year to which the forecast applies.  Entries should be right
         adjusted.

    k.   Blocks 30-34.  Enter actual quantities for each entry type (except
         beginning inventories that are entered in blocks 25-29) for the
         first quarter of the fiscal year in which the forecast is prepared.

    l.   Blocks 35-39.  Enter appropriate quantities for each entry type
         (except beginning inventories) for the remainder of the current
         fiscal year (totals for the second, third, and fourth quarters).

    m.   Blocks 40-74.  Enter quantities for each entry type (except
         beginning inventories) for each of the fiscal years.  In the blank
         "FY" insert the two-character number reflecting the appropriate
         fiscal year, e.g., 95, 96.  Eleven entries should be made to
         reflect consecutive fiscal years of the forecast period.

**** NOTE:
     ATTACHMENT OF FIGURE I-1 - FORECAST OF NUCLEAR MATERIAL REQUIREMENTS
     (FORM DOE F 5660.1) (PAGE I-10)
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