Natick, Mass., Bd. of Health Reg. ch. XI (2002) § 6

The owner shall be responsible for compliance with the
          provisions of Subsections 6.l, 6.2, 6.3, 6.4, 6.5, and 6.9 of
          Section 6 of these minimum standards.
6.1   Every foundation, floor, wall, ceiling, door, window, roof or
      other part of a dwelling shall be kept in good repair and
      capable of the use intended by its design.

6.2   Every inside and outside stair, every porch and every
      appurtenance thereto shall be so constructed as to be safe to
      use and capable of supporting the load that normal use may
      cause to be placed thereon; and shall be kept in sound
      condition and good repair. Every stairway having three or
      more steps shall be properly bannistered and safely
      balustraded.

6.3   Railings or parapets shall be provided around porches that are
      higher than thirty inches above ground level, balconies, roofs
      used for egress or tenancy purposes and/or similar places.
      Such protective railings or parapets shall be properly
      balustered and be not less than three feet in height.

6.4   Every roof, wall, window, exterior door and hatchway shall be
      free from holes or leaks that would permit the entrance of
      water within a dwelling and be a cause of dampness.

6.5   Every foundation, floor and wall shall be free from chronic
      dampness.

6.6   Every dwelling shall be free from rodents or vermin. Rodent
      or vermin extermination and rodent proofing and vermin
      proofing may be required by the Board of Health. Rodent and
      vermin extermination and the responsibility therefor shall be
      carried out in accordance with Subsection 8.9 of Section 8 of
      these minimum standards.

6.7   Every dwelling shall be clean and free from garbage or
      rubbish. When a dwelling or dwelling unit is not reasonably
      clean or free from, garbage or rubbish, the Board of Health
      may cause the responsible person in accordance with the
      provisions of Subsection 8.3 through 8.9 inclusive of Section 8
      of these minimum standards to put the dwelling or dwelling
      unit in a cleanly condition.
    6.8   When a wall or ceiling within a dwelling has deteriorated so
          as to provide a harborage for rodents or vermin, or such wall or
          ceiling has become seriously stained or soiled, the Board of
          Health may order the owner to clean, repair, paint, whitewash,
          or paper such walls or ceilings. Nothing in this standard shall
          be so construed as to place upon the non-resident owner
          responsibilities for cleanliness contained in Subsection 8.5 of
          Section 8 of these minimum standards.

    6.9   Every water closet compartment floor and bathroom floor shall
          be constructed and maintained so as to be reasonably
          impervious to water and so as to permit such floor to be kept in
          a clean and sanitary condition.