drawings  that  are  complete  enough  for  the  user  to require  no  further  information.  Project  drawings include all of the drawings necessary for the different Seabee ratings to complete the project. These are the drawings  that  show  the  size,  quantity,  location,  and relationship of the building components. A  complete  set  of  project  drawings  consists  of general   drawings,   detail   drawings,   and   assembly drawings. General drawings consist of “plans” (views from   above)   and   elevations   (side   or   front   views) drawn on a relatively small defined scale, such as 1/8 in. = 1 ft. Most of the general drawings are drawn in orthographic projections, although sometimes details may  be  shown  in  isometric  or  cavalier  projections. Detail  drawings  show  a  particular  item  on  a  larger scale than that of the general drawing in which the item appears, or it may show an item too small to appear at all  on  a  general  drawing.  Assembly  drawings  are either  an  exterior  or  a  sectional  view  of  an  object showing the details in the proper relationship to one another.  Usually,  assembly  drawings  are  drawn  to  a smaller scale than are detail drawings. This procedure provides a check on the accuracy of the design of detail drawings and often discloses errors. Construction   drawings   are   reviewed   and evaluated   for   design   and   technical   accuracy   by NAVFACENGCOM   to   ensure   good   quality, consistency,   and   cost   effectiveness   of   the   design. Special  terms  covered  in  the  following  paragraphs describe   these   procedures   from   the   initial development   of   the   project   to   the   final   phase   of construction. PRELIMINARY   DRAWINGS PRELIMINARY   DRAWINGS are the initial plans for projects prepared by the designer or architect’s and engineer’s  (A/E)  firm  during  the  early  planning  or promotional stage of the building development. They provide   a   means   of   communication   between   the designer and the user (customer). These drawings are NOT intended to be used for construction, but they are used  for  exploring  design  concepts,  material  selection, preliminary cost estimates, approval by the customer, and  a  basis  for  the  preparation  of  finished  working drawings. Notice that most of the design work incorporated into the preliminary drawings at the 35 percent stage of completion contain, as a minimum, the following information:   site   plans,   architectural   floor   plans, elevations,   building   sections,   preliminary   finish schedule  and  furniture  layouts,  interior  and  exterior mechanical  and  electrical  data,  and  civil  and  structural details.  All  of  the  preliminary  project  drawings scheduled  for  use  by  the  Seabees  are  reviewed  by the   COMSECONDNCB   or   COMTHIRDNCB,   as appropriate  e,  for  construction  methods  or  procedures, whereas  preliminary  contract  drawings  are  reviewed by the ROICC. FINAL  DRAWINGS FINAL   DRAWINGS  are  100  percent  complete, signed  by  the  contracting  officer,  and  are  used  for bidding   purposes.   This   set   of   plans   becomes   the official   contract   drawings   once   the   contract   is awarded.  Final  drawings  are  often  revised  to  show changes made by a scope change or by a change order with  the  concurrence  of  both  the  contractor  and  the contracting  officer.  At  this  stage  of  completion,  no further  functional  input  may  be  introduced  into  the final  drawings  because  of  time  constraints.  In  general, final  drawings,  together  with  project  specifications, cost estimates, and all of the calculations, comprise the final stages of design requirements. RED-LINED  DRAWINGS RED-LINED    DRAWINGS  are  the  official contract   drawings   that   you   will   mark   up   during construction  to  show  as-built  conditions.  They  are marked in the color “red” to indicate either a minor design change or a field adjustment. AS-BUILT  DRAWINGS AS-BUILT DRAWINGS are the original contract drawings  (or  sepia  copies)  that  you  will  change  to show  the  conditions  from  the  red-lined  drawings. When   the   facilities   have   been   completed,   the construction  contractor  or  the  military  construction force (NMCB) is required to provide the ROICC with as-built drawings, indicating construction deviations from   the   contract   drawings.   All   of   the   as-built marked-up prints must reflect the exact conditions on all  features  of  the  project  as  constructed.  After  the project  is  completed,  the  ROICC  transmits  the  as-built marked-up  prints  to  the  engineering  field  division (EFD). RECORD  DRAWINGS The   original   contract   drawings,   corrected according to the marked prints, provide a permanent record  of  as-built  conditions  when  the  construction work on a project is completed. The original  RECORD DRAWINGS may be retained in the custody of the 2 - 2