NEC4: Design Build and Operate Contract Flow Charts
These flow charts depict the procudures followed when using the NEC4 Design Build and Operate Contract (DBOC). They are intended to help people using the DBOC to see how the various DBOC core clauses and Options come together to produce clear and precise sequences of action for the people involved.
14 The Service Manager 6
15 Early Warning 7
16 Contractor’s proposals 8
17 Requirements for instructions Sheets 1 and 2 9
18 Corrupt Acts 11
19 Prevention 12
20 Providing the Service 13
21 The Contractor’s design 14
22 Using the Contractor’s design 15
23 People 16
24 Working with the Client and Others 17
25 Subcontracting Sheets 1 and 2 18
26 Other responsibilities 20
27 Assignment 21
28 Disclosure 22
30 Starting and the Service Period 23
31 The Contractor’s plan Sheets 1 and 2 24
32 Revising the Contractor’s plan 26
33 Access 27
34 Instructions to stop or not to start work 28
40 Quality management system 29
41 Tests and inspections Sheets 1 and 2 30
42 Testing and inspection before delivery 32
43 Notifying and correcting Defects 33
44 Accepting Defects 34
50 Assessing the amount due Sheets 1 to 4 35
51 Payment Sheets 1 and 2 39
52 Defined Cost 41
53 Performance adjustments 42
54 Price adjustment 43
55 The Price List 44
iv Flow Charts for the Design Build and Operate Contract neccontract.com © nec 2017
CONTENTS
56 Final assessment Sheets 1 and 2 45
60 Compensation events Sheets 1 to 5 47
61 Notifying compensation events Sheets 1 to 3 52
62 Quotations for compensation events Sheets 1 and 2 55
63 Assessing compensation events Sheets 1 and 2 57
64 The Service Manager’s assessments Sheets 1 and 2 59
65 Proposed instructions 61
66 Implementing compensation events 62
70 The Client’s title to Plant and Materials 63
71 The Parties’ use of equipment, Plant and Materials 64
72 Marking Plant and Materials outside the
Service Areas 65
73 Title to materials 66
80 Client’s liabilities Sheets 1 to 3 67
81 Contractor’s liabilities 70
82 Recovery of costs 71
83 Insurance cover 72
84 Insurance policies 73
85 If the Contractor does not insure 74
86 Insurance by the Client 75
90 Termination 76
91 Reasons for termination Sheets 1 to 5 77
92 Procedures on termination 82
93 Payment on termination 83
W1 Resolving disputes procedure W1 Sheets 1 to 5 84
W2 Resolving disputes procedure W2 Sheets 1 to 6 89
X3 Multiple currencies 95
X4 Ultimate holding company guarantee 96
X8 Undertakings to the Client or Others 97
X9 Transfer of rights 98
X10 Information modelling 99
X13 Performance bond 100
X14 Advanced payment to the Contractor 101
X18 Limitation of liability 102
X23 Extending the Service Period 103
Y(UK)2 The Housing Grants, Construction and
Regeneration Act 1996 104
Y(UK)3 The Contracts (Rights of Third Parties) Act 1999 105
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