CEMENT AND CONCRETE SECTIONAL COMMITTEE HAS DERIVED ASSISTANCE FROM THE VARIOUS ASSOCIATIONS AND INSTITUTES AS WELL AS THE PUBLIC DOCUMENTS AND PUBLISHED THE CODE OF PRACTICE IS:456 -1978 .

General design Requirements has been grouped together in the Design Rules which are generally applicable to all the Structures designed by any method. The significant changes in corporated under section 3are laid below as follows: (a) Recommendations regarding prototype testing have been added .(b) Recommendations regarding stability of the Structures as a whole have been given in addition to the one regarding the stability of overhanging members .(c) Some Recommendations regarding the frame Analysis such as substitute frames have been given.(d) The rules for effective width of flange for T and L beams have been changed.(e) The Recommendations regarding slender beams have been changed.(f) The slenderness limits for columns have been changed.(g) Minimum eccentricity for the design of compression Members has been specified .(h) Rules governing the use of bundled bars have been added. (j) Curtailment rules for reinforcement in beams and slabs have been given .(k) Recommendations regarding critical section for shear and minimum web reinforcement have been added .(m) The recommendations regarding minimum tensile reinforcement in beams has been modified.(n) Recommendations regarding side face reinforcement in beams have been added .(p) The clause on span to depth ratio required for controlling the deflection has been modified and elaborated to take into account the type and percentage of reinforcement provided .Method for calculating the short term as well as long term deflection has been added .(q) Detailing rules for crack control have been given in the code . These rules are expected to lead to a satisfactory design for most of the structures under normal envoirnmental conditions. Detailed investigations of crack width however may required for unusual cases or Structures in aggressive environments .(r) Guidance on the determination of effective length of Columns in framed structures has been added .Section 4 includes Special design Requirements for Structures such as flat slabs ,deep beams ,etc and these are in addition to/ Superseding the rules of section 3 ,as applicable .The significant changes incorporated in section 4 are as follows: (a) Recommendations for the design of deep beams have been added .(b) Guidance for the design of ribbed and voided slabs has been included.(c) The clauses on design of flat slabs have been revised . Shear in flat slabs and openings in flat slabs are now covered with some extra details .(d) The clauses on footings have also undergone some changes regarding design for shear and transfer of load at the base of the column .Sectional Committee working on the captioned subject matter deliberation required to be assessed under the law code manual prefixed by the code ,derived assistance from the American concrete institute, British Standard institution, Cement and concrete Association, London , Standard Association of Australia.Assistance is also derived from the published documents of the following Organisations : Canadian Standard Association, Comite  Euro -- International Du Beton , Deutscher Normena auss chuss and the International Standard Organisation.